If there are 29 students in class and they need to collect a total of 168, we can divide 168 by 29 to get $5.79. This means that each student must collect $5.79 in order for them to be able to purchase everything.
If y = mx + b is the equation of a line perpendicular to the line y = 5x – 2, what is the value of m?
The value of m is [tex]-\frac{1}{5}[/tex]
Step-by-step explanation:
The relation between the slopes of two perpendicular line is
The product of their slopes is -1That means if the slope of one of them is m, then the slope of the other is [tex]-\frac{1}{m}[/tex] To find the slope of a perpendicular line to a given line, reciprocal the slope of the given line and change its sign∵ The equation of the perpendicular line is y = mx + b
∴ The slope of the perpendicular line is m
∵ The equation of the given line is y = 5x - 2
- The slope of the given line is the coefficient of x
∴ The slope of the given line = 5
- To find the slope of the perpendicular line to the given line
reciprocal the slope of the given line and change its sign
∵ The reciprocal of 5 is [tex]\frac{1}{5}[/tex]
∴ The slope of the perpendicular line = [tex]-\frac{1}{5}[/tex]
∵ m is the slope of the perpendicular line
∴ m = [tex]-\frac{1}{5}[/tex]
The value of m is [tex]-\frac{1}{5}[/tex]
Learn more:
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If m∠1 = m∠2, then m∠1 is:
The statement m∠1 = m∠2 within a geometric context implies that the angles are congruent. If these angles are part of a triangle, the triangle is likely isosceles, which aligns with the theorem that equal angles in a triangle indicate equal opposite sides.
Explanation:If m∠1 = m∠2, this equation suggests we are dealing with congruent angles, potentially within a geometric context. In the realm of geometry, congruency implies that both angles have the same measure. Thus, if these are angles within a triangle, according to the given theorem, the triangle is isosceles.
According to the property that the sum of angles in a triangle is equal to two right angles or 180 degrees (THEOREM 20), we can understand that in an isosceles triangle, the angles opposite to the equal sides are also equal. This would mean that if m∠1 equals m∠2, these could be the angles opposite the two equal sides in an isosceles triangle.
Furthermore, when interpreting equations such as m₁v₁ = 1 / 012₂ cos 0₂, we are likely dealing with more advanced mathematical or physical concepts, such as vectors or trigonometry. Yet, these equations do not apply directly to the statement m∠1 = m∠2 unless more context is provided about the relationship between these angles and the variables in those equations.
Renae Walters is paid a salary of $9,000 per month.
a. How much is deducted in January for Social Security? For Medicare?
b. How much is deducted in November for Social Security? For Medicare?
c. How much is deducted in December for Social Security? Medicare?
Answer:
The amount for social security for all 3 months will $558 and the contribution for medicare will be $130.5
Step-by-step explanation:
Given that the salary is paid in US dollars, we can assume that Renae Walters falls under the social security and medicare tax rates for the United States. These rates, as of 2020, fall at 6.2% for social security and 1.45% for medicare.
By formula:
-Social security contribution= Social security tax rate * Income earned
January for example Social Security= 0.062* $9000= $558
-Medicare contribution= Medicare tax rate * Income earned
January for example Medicare = 0.0145* $9000= $130.5
The above method will apply through the months without changes.
Remember: The social security wage base for 2020 is fixed at $137,700. Any income above this amount is not subject to social security tax. This implies that if the total yearly income is above $137,700, the individual is only liable to pay for the amount below. In this case, this is not possible as the yearly income reaches $108,000 and hence payment has to be made for all 12 months. There is no wage base for medicare, so payments remain unaffected.
Answer:
Social security:558, Medicare: 130.50 for all three months
Step-by-step explanation:
A. 9000X.062=558 social security
9000x.0145=130.50
b. Same answer as a.
c. Same answer as a.
the amounts are the same for all 3 months.
(35 points) A student flips the coin and spins the spinner shown. Which correctly shows the probability the coin lands on heads and the spinner lands on blue?
1/8
3/8
3/4
5/4
Answer:
Step-by-step explanation:
P(heads) = 1/2
P(blue) = 1/4
P (heads and blue) = 1/2 * 1/4 = 1/8
A regular polygon has an interior angle of 165 degrees. How many sides does it have?
Answer:
24
Step-by-step explanation:
First find the exterior angle: 180 - 165 = 15
Then 360 ÷ 15 because 360 divided by he exterior angle of a regular polygon is equal to the number of sides.
Answer:
Hello, 24
Step-by-step explanation:
Ingerior angle = 165
Exterior angle = 180 - 165 = 15
The sum of exterior angles of any polygon is 360
Number of sides = 360/15 = 24 A polygon is any two dimensional shape formed with the straight lines. Triangles, pentagons, quadrilaterals, and hexagons are all examples of the polygons. The name itself tells as to how many sides the shape has. For example, a triangle has three sides, whereas a quadrilateral has four sides.
Thus, when the regular polygon have if each of its interior angle is 165° then,
The corresponding exterior angle must be 180-165 = 15°
The sum of ALL the exterior angles is 360°
Sides of exterior angles is 360/15 = 24
Therefore the number of sides a regular polygon will have is 24 Have a Awesome Day!
Elizabeth has already jarred 1 liter of jam and will jar an additional 2 liters of jam every day. How many days
did Elizabeth spend making jam if she jarred 9 liters of jam? Write and solve an equation to find the answer.
Number of days Elizabeth spend making jam if she jarred 9 liters of jam is 4 days
Solution:
Given that, Elizabeth has already jarred 1 liter of jam
She will jar an additional 2 liters of jam every day
To find: Number of days Elizabeth spend making jam if she jarred 9 liters of jam
Let "x" be the number of days Elizabeth spend making jam
Then, by given information, we frame a equation as,
9 liters of jam = 1 liter of jam + 2 liters of jam( "x" days )
[tex]9 = 1 + 2x\\\\9 - 1 = 2x\\\\2x = 8\\\\x = 4[/tex]
Thus she spend 4 days in making jam
Riley is saving up to buy a new television. She needs a total of $1,212.61. Riley has saved $200.30 already and earns $77.87 per week at her job. How many weeks does Riley need to work to save enough money to buy the new television?
Riley will need to work approximately 13 weeks to save enough money to buy a new television.
Explanation:Riley needs to save $1,212.61 to buy a new television and already has $200.30, meaning she requires an additional $1,212.61 - $200.30 = $1,012.31. As her weekly earning is $77.87, she must save for several weeks to accumulate the required amount. To find the number of weeks, divide the total amount she needs to save by her weekly earnings. Therefore: $1,012.31 / $77.87 = approximately 13 weeks. Therefore, Riley will need to work for about 13 weeks to accumulate the required amount to purchase the television.
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Given: f(x) = +5 and g(x) = x - 2.
What are the restrictions of the domain of f(g(x))?
O X=-5
O X=-3
o * 2
o There are no restrictions.
Answer:
14838388÷+113
Step-by-step explanation:
because it has two zeros
Answer:
its b
Step-by-step explanation:trust
Lily was building towers with her Legos. The first tower that she built had only one LEGO. The second tower had 4 LEGO’s. The towers she built after that had 9 and then 16 LEGO’s. How many LEGO’s would Lily’s 100th tower have?
Here is the pattern of Lily's towers in the form of x, y:
1, 1
2, 4
3, 9
4, 16
The equation x^2 fits for this problem, so 100^2 would mean it would take 10,000 LEGOS to build the 100th tower.
Do you hypotenuse of a triangle is 1 foot more than twice the length of the shorter leg the longer leg is 7 feet longer than the shorter leg find the dimensions of the triangle
Answer:
Shorter leg: 8 units
Longer leg: 15 units
Hypotenuse: 17 units
Step-by-step explanation:
We are given [tex]h=1+2s[/tex] where [tex]h[/tex] is the hypotenuse and [tex]s[/tex] is the length of the shorter leg.
We got this equation from reading that the "hypotenuse of a triangle is 1 foot more than twice the length of the shorter leg". I replaced the "hypotenuse of a triangle" with [tex]h[/tex], "is" with [tex]=[/tex], "1 foot more than" with [tex]1+[/tex] and finally "twice the length of the shorter leg" with [tex]2s[/tex].
We also have "longer leg is 7 feet longer than the shorter leg".
I'm going to replace "longer leg" with [tex]L[/tex].
I'm going to replace "is" with [tex]=[/tex].
I'm going to replace "7 feet longer than the shorter leg" with [tex]7+s[/tex].
So we have the equation [tex]L=7+s[/tex].
So we have a right triangle since something there is a side being referred to as the hypotenuse. We can use Pythagorean Theorem to find a relation between all these sides.
So by Pythagorean Theorem, we have: [tex]s^2+L^2=h^2[/tex].
Let's make some substitutions from above:
[tex]s^2+(7+s)^2=(1+2s)^2[/tex]
Let's expand the powers using:
[tex](a+b)^2=a^2+2ab+b^2[/tex]
Applying this now:
[tex]s^2+(49+2(7)s+s^2)=(1+2(1)(2s)+(2s)^2)[/tex]
[tex]s^2+49+14s+s^2=1+4s+4s^2[/tex]
Combine like terms on right hand side:
[tex]2s^2+49+14s=1+4s+4s^2[/tex]
Subtract everything on left hand side to get 0 on that side:
[tex]0=(1-49)+(4s-14s)+(4s^2-2s^2)[/tex]
Simplify:
[tex]0=(-48)+(-10s)+(2s^2)[/tex]
Reorder into standard form for a quadratic:
[tex]0=2s^2-10s-48[/tex]
Every term is even and therefore divisible by 2. I will divide both sides by 2:
[tex]0=s^2-5s-24[/tex]
I'm going to see if this is factoroable.
We need to see if we can come up with two numbers that multiply -24 and add up to be -5.
Those numbers are -8 and 3.
So the factored form is:
[tex]0=(s-8)(s+3)[/tex]
This implies that either [tex]s-8=0[/tex] os [tex]s+3=0[/tex].
The first equation can be solved by adding 8 on both sides: [tex]s=8[/tex].
The second equation can be solved by subtracting 3 on both sides: [tex]s=-3[/tex].
The only solution that makes sense for [tex]s[/tex] is 8 since it can't the shorter length cannot be a negative number.
[tex]s=8[/tex]
[tex]L=7+s=7+8=15[/tex]
[tex]h=1+2s=1+2(8)=1+16=17[/tex]
So the dimensions of the right triangle are:
Shorter leg: 8 units
Longer leg: 15 units
Hypotenuse: 17 units
When solving the equation 27.75n + 5.50= 144.25 , what can you do to get 27.75n by itself on one side of the equation?
Answer:
Subtract 5.5 from both sides
Or
Add -5.50 to both sides
Step-by-step explanation:
The given equation is :
27.75n + 5.50= 144.25
To get 27.75n on one side of the equation.
We subtract 5.50 from both sides to get:
27.75n + 5.50-5.50= 144.25-5.50
This simplifies to:
27.75n= 138.75
Therefore the answer is subtract 5.50 from both sides
Hollister boys shirts for 26 dollars and sells them for 37 dollars. What is the % of change? Round to the nearest whole %.
HELP ASAP I NEED A ANSWER FAST!!!!
The percent of change is 42 %
Solution:
Given that, Hollister boys shirts for 26 dollars and sells them for 37 dollars
We have to find the percent of change
The percent change is given by formula:
[tex]Percent\ Change = \frac{\text{final value - initial value}}{\text{Initial value}} \times 100[/tex]
Here given that,
Initial value = 26 dollars
Final value = 37 dollars
Substituting the values we get,
[tex]Percent\ Change = \frac{37-26}{26} \times 100\\\\Percent\ Change = \frac{11}{26} \times 100\\\\Percent\ Change =0.423 \times 100\\\\Percent\ Change =42.3 \approx 42[/tex]
Thus percent of change is 42 %
which polynomial represents the sum below? (3x^2+3) + (3x^2+x+4) A) 6x^2+x+12 B) 9x^2+x+7 C) 6x^@+x+7 d)9x^2+x+12
Answer:
Step-by-step explanation:
3x^2 + 3 + 3x^2 + x + 4....combine like terms
6x^2 + x + 7 <===
2y-1/5-2+7y/15>2/3
a. y>-9
b. y<-9
c. y> 0
d. y> 0 or y< -9
Final answer:
To solve the inequality, simplify the expression and isolate the variable y. The solution is y > 43/37, so the correct answer is option (c).
Explanation:
To solve the inequality 2y - 1/5 - 2 + 7y/15 > 2/3, we can simplify and isolate the variable y. Combining like terms, we have 2y + 7y/15 - 1/5 - 2 > 2/3. Multiplying all terms by 15, we get 30y + 7y - 3 - 30 > 10. Simplifying further, we have 37y - 33 > 10. Adding 33 to both sides, we have 37y > 43. Finally, dividing both sides by 37, we find that y > 43/37.
So the correct answer is option (c), y > 43/37.
Which statement could be used to explain why the function h(x) = x has an inverse relation that is also a function?
Answer:
Since h(x) is a one-to-one function, this means its inverse is also a function
Step-by-step explanation:
The key idea here is knowing that a function needs to be a 'many - to -one' operation (Many could also include one-to-one functions. The key if that for any x, there is only one f(x) value).
This means that for a function to have an inverse, it needs to be one-to-one. Since the domain and range switch when we look at inverse relations, and so if we have a many-to-one function, then it's inverse would be one-to-many. But we need it to be one-to-one. So the original function would need to be one-to-one.
However the short answer is to just know the 'theorem' which says that a function has an inverse function if and only if it is a one-to-one function.
Answer: c, the graph of the inverse of h(x) passes through the horizontal line test.
Step-by-step explanation:
Edge 2020
When you calculate the area, what measurement are you finding?
A
Area measures the distance around the outside of a given shape.
B
Area measures the amount of any certain single unit (inches, feet, miles, etc.) that can be contained inside the flat plane of a given shape.
Answer:
B
Area measures the amount of any certain single unit (inches, feet, miles, etc.) that can be contained inside the flat plane of a given shape.
Step-by-step explanation:
13. A shop owner spent $540 to purchase a stock of
computer keyboards. If the price of each keyboard
had been reduced by $2, he could have bought 3
more keyboards. Find the price of one keyboard.
The original price of one keyboard was $20.
Let's denote the original price of one keyboard as x.
The shop owner spent $540 to purchase a stock of computer keyboards. Therefore, the number of keyboards he purchased can be calculated as [tex]\( \frac{540}{x} \)[/tex].
If the price of each keyboard had been reduced by $2, the new price of one keyboard would be x - 2.
With this reduced price, the shop owner could have bought 3 more keyboards, so the total number of keyboards he could have purchased is [tex]\( \frac{540}{x-2} \)[/tex].
We are given that this value is 3 more keyboards than the original purchase, so we can set up the equation:
[tex]\[\frac{540}{x-2} = \frac{540}{x} + 3\][/tex]
To solve this equation, we first clear the fractions by multiplying both sides by (x(x-2):
[tex]\[540x = 540(x-2) + 3x(x-2)\][/tex]
Expanding and simplifying:
[tex]\[540x = 540x - 1080 + 3x^2 - 6x\][/tex]
[tex]\[0 = 3x^2 - 6x - 1080\][/tex]
Now, let's solve this quadratic equation for x.
Dividing both sides by 3:
[tex]\[x^2 - 2x - 360 = 0\][/tex]
Now, we can use the quadratic formula to solve for x:
[tex]\[x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\][/tex]
Where a = 1, b = -2, and c = -360:
[tex]\[x = \frac{-(-2) \pm \sqrt{(-2)^2 - 4 \times 1 \times (-360)}}{2 \times 1}\][/tex]
[tex]\[x = \frac{2 \pm \sqrt{4 + 1440}}{2}\][/tex]
[tex]\[x = \frac{2 \pm \sqrt{1444}}{2}\][/tex]
[tex]\[x = \frac{2 \pm 38}{2}\][/tex]
So, x can be either:
[tex]\[x = \frac{2 + 38}{2} = \frac{40}{2} = 20\][/tex]
or
[tex]\[x = \frac{2 - 38}{2} = \frac{-36}{2} = -18\][/tex]
Since the price of a keyboard cannot be negative, the only valid solution is x = 20.
Therefore, the original price of one keyboard is $20.
4 math problem
1. y=-6x-14
-x-3y=-9
2. -5x+2y=-11
5x-3y=14
3. x+10y=-16
x-6y=16
4. -12x-y=15
6x-2y=-30
please help
Answer:
Step-by-step explanation:
1)y=-6x-14 ---------(i)
-x-3y=-9 ---------- (ii)
Substitution method:
Substitute y value in equ (i)
-x -3*(-6x-14) = -9
-x - 3*-6x -3*(-14)= -9
-x + 18x + 42 = -9
17x = -9 -42
17x = -51
x = -51/17
x = -3
Substitute x value in equation (i)
y = -6*-3 -14
y =18-14
y = 4
Step-by-step explanation:
I'm using substitute in the first and something I don't know the name of in the rest.
A movie theater charges 8 dollars for adults and 4 dollars for seniors. On a particular day when 353 people paid an admission, the total receipts were 1688 dollars
A movie theater charges 8 dollars for adults and 4 dollars for seniors. On a particular day when 353 people paid an admission, the total receipts were 1688 dollars. How many who paid were adults? . How many who paid were seniors?
Answer:
There were 69 adults and 284 seniors
Solution:
Let "a" be the number of adults
Let "s" be the number of seniors
Cost of 1 adult = $ 8
Cost of 1 senior = $ 4
On a particular day when 353 people paid an admission
Therefore,
number of adults + number of seniors = 353
a + s = 353
a = 353 - s ---------- eqn 1
The total receipts were 1688 dollars
Therefore, we frame a equation as:
number of adults x Cost of 1 adult + number of seniors x Cost of 1 senior = 1688
[tex]a \times 8 + s \times 4 = 1688[/tex]
8a + 4s = 1688 ---------- eqn 2
Let us solve eqn 1 and eqn 2
Substitute eqn 1 in eqn 2
8(353 - s) + 4s = 1688
2824 -8s + 4s = 1688
4s = 2824 - 1688
4s = 1136
s = 284Substitute s = 284 in eqn 1
a = 353 - 284
a = 69Thus there were 69 adults and 284 seniors in movie theater
there were 55 adults and 284 seniors who paid admission.
Let's denote:
- ( A ) as the number of adults.
- ( S ) as the number of seniors.
Given:
- The price for adults is $9.
- The price for seniors is $5.
- The total number of people who paid admission is 339.
- The total receipts were $1915.
We can set up a system of equations based on the given information:
1. The total number of people who paid admission:
[tex]\[ A + S = 339 \][/tex]
2. The total receipts:
[tex]\[ 9A + 5S = 1915 \][/tex]
Now, we can solve this system of equations.
Let's solve equation 1 for one of the variables (let's solve for ( A )):
[tex]\[ A = 339 - S \][/tex]
Now, substitute this expression for( A ) into equation 2:
[tex]\[ 9(339 - S) + 5S = 1915 \][/tex]
Now, solve for \( S \):
[tex]\[ 3051 - 9S + 5S = 1915 \][/tex]
[tex]\[ -4S = 1915 - 3051 \][/tex]
[tex]\[ -4S = -1136 \][/tex]
[tex]\[ S = \frac{-1136}{-4} \][/tex]
[tex]\[ S = 284 \][/tex]
Now, we can find ( A ) using the value of ( S ) we found:
[tex]\[ A = 339 - 284 \][/tex]
[tex]\[ A = 55 \][/tex]
So, there were 55 adults and 284 seniors who paid admission.
complete question given below:
A movie theater charges 9$ for adults and 5 for seniors.on a particular day when 339 people paid an admission,the total receipts were 1915$ how many who paid were adults and how many who paid were seniors
Complete the square for each expression. Then factor the Trinomial
x^2+8x
The value of x is [tex]x=0[/tex] or [tex]x=-8[/tex]
Step-by-step explanation:
The expression is [tex]x^{2} +8x=0[/tex]
To complete the square, the equation is of the form [tex]ax^{2} +bx+c=0[/tex]
The constant term c can be determined using, [tex]c=\left(\frac{\frac{b}{a}}{2}\right)^{2}[/tex]
[tex]\begin{aligned}c &=\left(\frac{8}{2}\right)^{2} \\&=\left(\frac{8}{2}\right)^{2} \\c &=4^{2} \\c &=16\end{aligned}[/tex]
Rewriting the expression [tex]x^{2} +8x=0[/tex] and factoring the trinomial, we have,
[tex]\begin{array}{r}{x^{2}+8 x+16=16} \\{(x+4)^{2}=16}\end{array}[/tex]
Taking square root on both sides, we get,
[tex]\begin{aligned}&x+4=\sqrt{16}\\&x+4=\pm 4\end{aligned}[/tex]
Either,
[tex]\begin{array}{r}{x+4=4} \\{x=0}\end{array}[/tex] or [tex]\begin{array}{r}{x+4=-4} \\{x=-8}\end{array}[/tex]
Thus, the value of x is [tex]x=0[/tex] or [tex]x=-8[/tex]
Please help me understand this step by step. FOR BRAINLIEST
Evaluate x^2 + 2x - 4 if x= -4
Answer:
Step-by-step explani think its power 10 wizard cards
ation:
Answer:
Step-by-step explanation:
A stationary observer notices that the average wave speed for a group of waves is 4 m/s.
If the distance between each crest is 0.02 km, how long does it take for each wave crest to
pass the observer?
Answer:
Each crest takes 5 seconds to pass the observer
Step-by-step explanation:
First, we need to convert all the units to be the same.
Speed is given in meters per second and length in kilometers, so we will convert kilometers to meters:
One kilometer has 1000 meters, so that means that 0.02 km has 20 meters.
Now, we can solve the problem:
speed equals to length over time, or in equation v = s/t
That means that t = s/v
t = 20m / 4 m/s
t = 5 s
Jason has 43 stamps. Some
are worth 15 cents and some
are worth 20 cents. If their total
value is $7.50, how many of
each kind does he have?
Jason has a total of 43 stamps, and we have two different stamps involved.
x = 15 cents
y = 20 cents
We will need to set up two equations and then use substitution:
43 = x + y (represents total stamps)
7.50 = 0.15x + 0.20y (represents total value)
To use substitution, we'll use the first equation and get either x or y on its own. In this case I will choose to get y on its own:
43 - x = x - x + y (subtract x to get y alone)
43 - x = y
Now we will use this in the second equation and simplify:
7.50 = 0.15x + 0.20(43 - x)
7.50 = 0.15x + 8.6 - 0.20x
7.50 = 8.6 - 0.05x
-1.1 = -0.05x (divide by -1.1 to get x alone)
22 = x
Now that we know Jason has 22 of the stamps that are worth 15 cents, we need to find y by plugging x, 22, into the first equation:
43 = 22 + y
21 = y
Jason has 22 stamps that are worth 15 cents and 21 stamps that are worth 20 cents.
Solve for x
6^7-x=36^2x-4
Answer:
x = 215.83654587...
Answer:
Exact Form:
x=279940/1297
Decimal Form:
x=215.83654587…
Mixed Number Form:
x=215[tex]\frac{1085}{1297}[/tex]
hope this helps:)
15/12, 0.4, 42%, 0.416 least to greatest
what is 2(8x-3) -4(3x-5)=19
Answer:
5/4
Step-by-step explanation:
2(8x-3)-4(3x-5)=19
16x-6-12x+20=19
16x-12x-6+20=19
4x+14=19
4x=19-14
4x=5
x=5/4
Mike bought a lunch that cost $7.00. He also paid 5% for sales tax. How much change did he receive from $20.00
Abbey gets paid a flat rate of $10.00 to mow her neighbor's lawn plus an additional $5 per hour to rake the leaves.
The money she earns is represented by the equation m = 5 h + 10 , where m represents the amount of money she earns, in dollars, and h is the number of hours she rakes leaves for.
Which of the following equations can be used to find h, the number of hours she rakes leaves for?
Answer:
Since you didn't provide any choices, a possible equations would be h = (m - 10) / 5
Step-by-step Solution:
Since we know that the flat-rate 10 doesn't have anything to do with the hourly rate, we first subtract that. Then, we divide that number by 5 to get rid of it, so we're only left with h.
This process of removing things from the equation by reversing their methods can be applied all over math and is a strategy vary commonly used.
Solve the below system of equations using the linear combination method. Show all your work, explaining each step in solving the system using the linear combination method.
2x + 3y = 1
y = -2x - 9
The solution to given system of equations is x = -7 and y = 5
Solution:
Given that, we have to solve the system of equations by linear combination method
Given system of equations are:
2x + 3y = 1 ---------- eqn 1
y = -2x - 9 ----------- eqn 2
We can use substitution method to solve the system of equations
Substitute eqn 2 in eqn 1
2x + 3(-2x - 9) = 1
Add the terms inside the bracket with constant outside the bracket
2x -6x - 27 = 1
Combine the like terms
-4x = 1 + 27
-4x = 28
Divide both sides of equation by -4
x = -7Substitute x = -7 in eqn 2
y = -2(-7) - 9
Simplify the above equation
y = 14 - 9
y = 5Thus solution to given system of equations is x = -7 and y = 5
Solve:
The total cost (C) in dollars for building an office of x square feet is given
by the function C(x) = 107,500 + 150x.
If the total cost was $385,000.00, how many square feet was the office?
Answer:
x=1850
Step-by-step explanation:
C(x) is a stand-in for total cost
since we are given the total cost we can replace the variable with its value
385000=107500+150x
now all we have to do is solve
start by subtracting 107500 from both sides
385000=107500+150x
277500=150x
now we finish solving by dividing both sides by 150
277500=150x
x=1850
please leave a like or brainliest if this was helpful :)