Answer:
Sean earns $7.5 in each hour.
Step-by-step explanation:
Given:
Money earned by Sean = $300
Number of hours worked in a day = 8 hrs
Number of days of work in a week = 5
We need to find Money earned in each hour.
First we will find Total hours work in a week.
Total hours work in a week is equal to Number of hours worked in a day multiplied by number of days work in a week.
Framing in equation form we get;
Total hours worked in a week = [tex]8\times5 = 40\ hrs[/tex]
Now we will find money earned for each hour.
Money earned each hour will be calculated by Dividing Total Money earned in a week by Total number of hours worked in a week.
Framing in equation form we get;
Money earned each hour = [tex]\frac{300}{40} = \$7.5[/tex]
Hence Sean earns $7.5 in each hour.
The graph of y= -4x + 7 is:
b and d can be eliminated because there are multiple solutions.
answer: A, because it shows all solutions to the equation
Answer: A line that shows the set of all solutions to the equation
Step-by-step explanation:
Given :
y = -4x + 7
The graph is a linear graph with negative slope.
the variable x could be any number , this means there could be as many solutions as possible.
this means that option B is out already.
Also , the equation is a graph and not a point , so option C and D are also out.
Option A will definitely fit in.
plz help in the attachment below
Answer:
M(t) = 741·(1/2)^(t/5730)
Step-by-step explanation:
One way to write an exponential function is this:
value at time t = (initial value) · (multiplier over period)^(t/period)
Here, the initial value is given as 741 grams, and the time period is 5730 years. The multiplier over that period is 1/2, since half of the quantity remains after that time. The problem statement tells us that "value at time t" is M(t), so we have ...
M(t) = 741·(1/2)^(t/5730) . . . . . t in years; M(t) in grams
Fifty students in the seventh grade are trying to raise at least $2000 for sports supplies. They already raised $750. How much should each student raise in order to meet the goal? Write your answer as an inequality.
Answer:
x ≥ 25
Step-by-step explanation:
In the seventh grade, fifty students are trying for sports supplies to raise at least $2000. They already have $750.
Let us assume that each student has to raise $x more to meet the goal.
Then, a total of 50 students will raise $50x more.
Therefore, the inequality to solve for x will be
750 + 50x ≥ 2000
⇒ 50x ≥ 1250
⇒ x ≥ 25 (Answer)
Final answer:
Each seventh grade student should raise at least $25 in order to collectively meet the goal of raising $2000 for their sports supplies after having already raised $750.
Explanation:
The goal amount for the seventh grade sports supplies fundraiser is $2000. They have already raised $750, leaving them with $1250 still needed to reach their goal. If there are 50 students working on the fundraiser, we can set up an inequality to determine how much money each student should raise minimally to meet the goal of $2000. Here's the inequality:
Let x be the amount each student needs to raise.
50x + $750 ≥ $2000
To solve for x, we subtract $750 from both sides of the inequality:
50x ≥ $2000 - $750
50x ≥ $1250
Now divide both sides by 50 to find the amount each student should raise:
x ≥ $1250 / 50
x ≥ $25
Therefore, each seventh grade student should raise at least $25 to meet the $2000 goal.
A credit card issuer charges an APR of 19.66%, and its billing cycle is 30 days
long. What is its periodic interest rate?
O
A. 21.72%
OB. 1.62%
O C. 21.53%
O D. 1.22%
SUBMIT
Answer:
The periodic interest rate is 1.62 %
Step-by-step explanation:
Given:
Annual percentage rate = 19.66%
Time period = 30 days
To Find:
Periodic interest rate =?
Solution:
The periodic interest rate r is calculated using the following formula:
r = (1 + \frac{i}{m})^{\frac{m}{n}} - 1
Where,
i = nominal annual rate
n = number of payments per year i.e., 12 for monthly payment, 1 for yearly payment and so on.
m = number of compounding periods per year
The period interest rate per payment is integral to the calculation of annuity instruments including loans and investments.
Now substituting the values we get
[tex]r = (1 + \frac{19.66}{12})^{\frac{12}{12}} - 1[/tex]
[tex]r = (1 + \frac{19.66}{12})^1 - 1[/tex]
r = (1 +1.638 ) - 1
r = (2.638 ) - 1
r = 1.638 %
there are 13 items in a bakers dozen. If Natalie orders 9 bakers dozen of muffins, how many muffins did Matslie order?
Natalie ordered a total of 117 muffins.
Explanation:A bakers dozen is equal to 13 items. If Natalie orders 9 bakers dozen of muffins, we can calculate the total number of muffins by multiplying 13 by 9.
Number of muffins = 13 * 9 = 117
Therefore, Natalie ordered 117 muffins.
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I need help trying to find out what is 73% of 83?
Answer:
60.59
Step-by-step explanation:
73%=0.73
0.73*83=60.59
60.59 is the number you're looking for.
Hope this helps, if not, comment below please!!!!
[tex] {x}^{2} - 1 < 18[/tex]
[tex]
x^2-1 < 18 \\
x^2 < 19 \\
x < \sqrt{19}
[/tex]
Hope this helps.
Your second mortgage of $31,200 is at a rate of 10.7% compounded quarterly for 8 years. What total will you have paid for your second mortgage after 8 years?
Answer:
The Amount paid after 8 years is $72611.76
Step-by-step explanation:
Given as :
The principal mortgage = p = $31,200
The rate of interest = r = 10.7% compounded quarterly
The time period of mortgage = t = 8 years
Let The Amount paid after 8 years = $A
Now, According to question
From Compounded Interest method
Amount = Principal × [tex](1+\dfrac{\textrm rate}{4\times 100})^{\textrm 4\times time}[/tex]
Or, A = p × [tex](1+\dfrac{\textrm r}{4\times 100})^{\textrm 4\times t}[/tex]
Or, A = $31,200 × [tex](1+\dfrac{\textrm 10.7}{4\times 100})^{\textrm 4\times 8}[/tex]
Or, A = $31,200 × [tex](1.02675)^{32}[/tex]
Or, A = $31,200 × 2.3273
∴ A = $72611.76
So, The Amount paid after 8 years = A = $72611.76
Hence, The Amount paid after 8 years is $72611.76 Answer
What is the equation of the line that passes through the point (-1, -3) and has a slope of -5?
answers y = -5x -16
y = -5x -8
y = -5x +8
y = -5x + 16
Answer:
y = -5x -8
Explanation:
Find b in equation y = mx + b
Insert numbers to find b
-3 = -5· -1 + b
Step 1: Simplify both sides of the equation.
−3=(−5)(−1)+b
−3=5+b
−3=b+5
Step 2: Flip the equation.
b+5=−3
Step 3: Subtract 5 from both sides.
b+5−5=−3−5
b=−8
Insert into equation
y = -5x - 8
Ron and Hermione are lifting feathers into the air with magic. Hermione can lift a feather 3,525
centimeters (cm) into the air. That is 5 times as high as Ron can lift a feather.
How high can Ron lift a feather with his magic?
Answer:705 cm
Step-by-step explanation:
3525 divided by 5
=705
Ron’s feather flew 705 cm
Ron’s feather flew 705 cm with his magic.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
Hermione can lift a feather 3,525 centimeters (cm) into the air. 5 times as high as Ron can lift a feather.
So
We have to 3525 divided by 5;
3525 / 5
=705
Hence, Ron’s feather flew 705 cm with his magic.
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The area of a square is 144 square centimeters. Find the length of the diagonal. Write your answer in simplest radical form.
Answer:
[tex]12\sqrt{2}\ cm[/tex]
Step-by-step explanation:
step 1
Find the length side of the square
we know that
The area of a square is equal to
[tex]A=b^{2}[/tex]
where
b is the length side
we have
[tex]A=144\ cm^2[/tex]
substitute in the formula of area
[tex]144=b^{2}[/tex]
solve for b
square root both sides
[tex]b=12\ cm[/tex]
step 2
Find the length of the diagonal
Applying the Pythagorean Theorem
[tex]d^2=b^2+b^2[/tex]
see the attached figure to better understand the problem
substitute the given values
[tex]d^2=12^2+12^2[/tex]
[tex]d^2=288[/tex]
square root both sides
[tex]d=\sqrt{288}\ cm[/tex]
simplify
[tex]d=12\sqrt{2}\ cm[/tex]
I need help am confused
Answer:
125, 119, 113, 107, 101
Step-by-step explanation:
All you have to do is keep subtracting 6 from the numbers.
125 - 6 = 119
119 - 6 = 113
113 - 6 = 107
107 - 6 = 101
Answer:
119,210,337,506,723
Step-by-step explanation:
x³-6 where x=5,6,7,8,9
5³-6=15-6=119
6³-6= 216-6=210
7³-6=343-6= 337
8³-6=512-6=506
9³-6= 729-6=723
What equation represents the proportional relationship displayed in the table? x=2,4,6,8 y=10,20,30,40 Enter your answer in the box to complete the equation. y = ? x
The answer is y = 5x.
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Answer:
y=5x
Step-by-step explanation:
I did the test
Write an linear equation that passes through (5,2) and (6,4)
Answer:
2x-y=8
Step-by-step explanation:
(6,4)-(5,2)=(1,2)
L: 2x-y=k
(5,2) -> L, k=8
2x-y=8
On a number line, what number is 2/3 of the way from 7 to 13?
Answer:
That would be about 11.667
The number that is 2/3 of the way from 7 to 13 on a number line is 11. This is found by calculating 2/3 of the distance between the two numbers and adding it to the starting number.
To find the number that is 2/3 of the way from 7 to 13 on a number line, you first calculate the distance between the two numbers, which is 13 - 7 = 6. Then you take 2/3 of that distance, which is 2/3 * 6 = 4. Lastly, you add this result to the starting number, in this case, 7, giving you 7 + 4 = 11. Therefore, the number that is 2/3 of the way from 7 to 13 is 11.
8 15 27 blank 20 find the blank number
the value of blank is 23.
Given series is,
8,15,27,_,20
We have to find the blank number.
Let the no. be x.
Since on observing the above series we find that the ratio of 15 to 8 is equal to the ratio of 27 to 15.
Hence, [tex]\frac{15}{8} =\frac{27}{15}=1.8[/tex]
This follows for the remaining terms also,
So, [tex]\frac{x}{27} =\frac{20}{x}[/tex]
[tex]x^{2} =20\times27\\x=\sqrt{540} \\x=23.23[/tex]
since, 23.23 is not a whole number so we take here 23.
Hence the value of blank is 23.
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A survey of all beings on planet Tott found that 12 beings preferred
hab juice to all other juices. If 40 beings were surveyed altogether,
what percent of them preferred hab juice?
(step by step)
Answer:
30% of them preferred hab juice.
Step-by-step explanation:
Given:
A survey of all beings on planet Tott found that 12 beings preferred hab juice to all other juices.
40 beings were surveyed altogether.
Now, to find percent of them preferred hab juice.
Total beings surveyed = 40.
Number of beings preferred hab juice = 12.
So, to get the percent:
[tex]\frac{Total\ beings\ surveyed}{Number\ of\ beings\ preferred\ hab\ juice} \times 100.[/tex]
[tex]=\frac{12}{40} \times 100[/tex]
[tex]=0.3\times 100[/tex]
[tex]=30\%.[/tex]
Therefore, 30% of them preferred hab juice.
Mickey buys 5 lemons and 3 limes for 3.70.Minnie buys 15 lemons and 4 limes for 7.85. How much does one lime cost?
Answer:
The cost of one lime is $0.65
Step-by-step explanation:
Let
x ---> the cost of one lemon
y ---> the cost of one lime
we know that
Mickey
[tex]5x+3y=3.70[/tex] ----> equation A
Minnie
[tex]15x+4y=7.85[/tex] ---> equation B
Solve the system by elimination
Multiply by -3 both sides equation A
[tex]-3(5x+3y)=-3(3.70)[/tex]
[tex]-15x-9y=-11.10[/tex] ----> equation C
Adds equation C and equation B
[tex]-15x-9y=-11.10\\15x+4y=7.85\\--------\\-9y+4y=-11.10+7.85\\-5y=-3.25\\y=0.65[/tex]
therefore
The cost of one lime is $0.65
Please help! This is the third time I asked
Find k, the constant of proportionality, for the data in this table. Then write an equation for the relationship.
They equation needs to be in the form y=kx
K=
Equation:
Jade uses 8 cups of flour to make 24 muffins at that rate how much flour will it take to make 30 muffins
Answer:
10 cups
Step-by-step explanation:
First, we need to find the unit rate. 24/8 equals to 3. 3 is the amount of flour per cupcake. 24 + 3= 27 + 3= 30. You added twice to get to 30. 8+2=10
How do you graph 4x+2y=10
Step-by-step explanation:
2x+y = 5 (divided by 2)
If x= 0, y=5
If x= 1, y=3
If x=-1, y=7
So, coordinate points are (0,5),(1,3),(1,7) and so on.
Continue above explanation.
After , draw a graph on x,y axis .
Answer: I used a graphing calculator.
Step-by-step explanation:
Dave's sister baked $3$ dozen pies of which a third contained chocolate, a quarter contained marshmallows, a sixth contained cayenne, and one twelfth contained salted soy nuts. What is the smallest possible number of pies that had none of these ingredients?
Step-by-step explanation:
As Dave's sister baked 3 dozen pies.
So, total number of pies = 3 × 12 = 36
Number of pies = 3×12 = 36
Pies which contained chocolate = 1/3×36 = 12
Pies which contained marshmallows = 1/4×36 = 9
Pies which contained cayenne = 1/6×36 = 6
Pies contained soy nut = 1/12×36 = 3
So,
Pies that had none of these ingredients = 36 - (12+9+6+3)
= 36 - 30
= 6 pies
So, total 6 pieces are left that had none of these ingredients.
i.e. 1, 2, 3, 4, 5, 6
Therefore,
The largest possible number of pies that had none of thees ingredients = 6 piecesThe smallest possible number of pies that had none of thees ingredients = 1 pieceKeywords: smallest possible number
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She baked 36 pies. Of these
1/3*36=12 contained chocolate
1/4*36=9 contained marshmallows
1/636=6 contained cayenne
1/12*36=3 contained salted soy nuts.
In order to make the number of pies with none of these ingredients as small as possible, Dave's sister should put all of these ingredients in different pies so that only one of the ingredients is in any pie. If she does this, then 12+9+6+3=30 of the pies will have one of these ingredients. The other 6 pies will have none of these ingredients. At least 6 pies have none of these ingredients.
-Alcumus AoPS Staff
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The graph of a limacon curve is given. Without using your graphing calculator, determine which equation is correct for the graph. [-5, 5] by [-5, 5]
a. r = 2 - 2 sin θ
b. r = 3 - 2 sin θ
c. r = 2 + 2 sin θ
d. r = 1 - 3 sin θ
Answer:
A
Step-by-step explanation:
A limacon curve passes trough the point [tex]\left(\dfrac{\pi}{2},0\right)[/tex], this means when [tex]\theta =\dfrac{\pi}{2},[/tex] the distance [tex]r=0.[/tex]
Note that
[tex]\sin \dfrac{\pi}{2} =1,[/tex]
so, if [tex]r=a+b\sin \theta,[/tex]
then
[tex]r\left(\dfrac{\pi}{2}\right)=a+b=0\\ \\a=-b[/tex]
The only option which shows a = -b is option A.
Answer:
b
Step-by-step explanation:
What are the exact solutions of x2 − x − 4 = 0, where x equals negative b plus or minus the square root of b squared minus 4 times a times c all over 2 times a?
A: x = the quantity of negative 1 plus or minus the square root of 15 all over 2
B: x = the quantity of 1 plus or minus the square root of 15 all over 2
C: x = the quantity of 1 plus or minus the square root of 17 all over 2
D: x = the quantity of negative 1 plus or minus the square root of 17 all over 2
Answer:C: x = the quantity of 1 plus or minus the square root of 17 all over 2
Step-by-step explanation:
Answer:
The answer is option C: x = the quantity of 1 plus or minus the square root of 17 all over 2
Step-by-step explanation:
The general form of the quadratic equation is ax² + bx + c = 0
The general solution of the quadratic equation is:
[tex]x=\frac{-b \pm \sqrt{b^2-4ac} }{2a}[/tex]
The given equation is x² − x − 4 = 0
So, a = 1 , b = -1 and b = -4
Substitute with a , b and c at the formula of the general solution.
The solution of the given equation = [tex]\frac{-(-1) \pm \sqrt{(-1)^2 - 4 * 1 * (-4)} }{2*1}= \frac{1\pm \sqrt{1 +16} }{2}=\frac{1\pm \sqrt{17} }{2}[/tex]
Comparing the solution with the given options
So, the answer is option C: x = the quantity of 1 plus or minus the square root of 17 all over 2
at a clothing store, jackets are on sale for 30% off.sale tax is 5%.which expression will calculate the total cost of a jacket with an original price of x
The expression to calculate the total cost of a jacket with an original price of x is 0.7x + 5 % of 0.7x
Solution:
Given that at a clothing store, jackets are on sale for 30% off
Sales is 5 %
To find: Expression to calculate the total cost of jacket
Let "x" be the original price of Jacket
Price of jacket after offer = original price of Jacket - 30 % of original price
Price of jacket after offer = x - 30 % of x
Price of jacket after offer = [tex]x - \frac{30}{100}x = 0.7x[/tex]
The total cost of jacket is sum of price of jacket after offer and sales tax
total cost of jacket = price of jacket after offer + sales tax
total cost of jacket = 0.7x + 5 % of 0.7x
Thus the expression to calculate the total cost of a jacket with an original price of x is 0.7x + 5 % of 0.7x
Find the value of X and y?
Answer:
y = 12 ; x = 14
Step-by-step explanation:
2x + 7 =3x - 7 { corresponding angles}
7 + 7 = 3x - 2x
14 = x
x = 14
12y + 1 + 3x - 7 = 180 {co interior angles}
12y + 1 + 3 * 14 - 7 = 180
12y + 1 + 42 - 7 = 180
12y + 36 = 180
12y = 180 - 36
12y = 144
y = 12
What is a reasonable distance between two cities? A. 200 km B. 200 m C. 200 cm D. 200 mm
Answer:
A would be best
Step-by-step explanation:
200 km is roughly 124.2 miles
200 m is about 0.12 miles
200 cm and 200 mm is way too small to be distances between cities because 200 cm is like 78.7 inches
200 mm is like 7.8 inches
124.2 miles or 200 km would be a reasonable distances between two cities.
Answer:
A. 200km is your answer
Step-by-step explanation:
What is the square root of the day of the month that Christmas falls on?
Answer:
5
Step-by-step explanation:
The day of the month Christmas falls on is 25th because Christmas falls on 25th December. The square root of 25 is 5 because 5 squared is 25
HELP
Find the area of the semicircle.
Either enter an exact answer in terms of
π
πpi or use
3.14
3.143, point, 14 for
π
πpi and enter your answer as a decimal.
The area of the semicircle if the radius is 2 in terms of π is 2π.
What is the area of the semicircle?Area of a circle = πr²
Where,
r = radius
A semicircle is half of a circle.
So,
Area of a semicircle = ½πr²
If r = 2
Area of a semicircle = ½ × π × 2²
= ½ × Π × 4
= 4/2π
= 2π
Hence, the area of the semicircle is 2π.
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Simplify each expression, and then arrange them in increasing order based on the coefficient of n2. -5(n3 – n2 – 1) + n(n2 – n) (n2 – 1)(n + 2) – n2(n – 3) n2(n – 4) + 5n3 – 6 2n(n2 – 2n – 1) + 3n2
To simplify the expressions and arrange them based on the coefficient of n², combine like terms and perform necessary operations. The expressions, in increasing order, are: 3n + 2, 2n³ - n² + 2n, -5n³ + 6n² - n + 5, and 6n³ - n² + n - 6.
Explanation:To simplify each expression and arrange them in increasing order based on the coefficient of n², we need to combine like terms and perform any necessary operations. Let's go through each expression:
-5(n³ – n² – 1) + n(n² – n) = -5n³ + 6n² - n + 5(n² – 1)(n + 2) – n²(n – 3) = 3n + 2n²(n – 4) + 5n³ – 6 = 6n³ - n² + n - 62n(n² – 2n – 1) + 3n² = 2n³ - 4n² + 2n + 3n² = 2n³ - n² + 2nArranging them in increasing order based on the coefficient of n², we have:
3n + 22n³ - n² + 2n-5n³ + 6n² - n + 56n³ - n² + n - 6Learn more about Simplifying Expressions here:https://brainly.com/question/29003427
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