What is the value of y in the equation 3 (3y - 9) = 0
Answers
Answer:
y=3
Step-by-step explanation:
3 (3y - 9) = 0
Divide each side by 3
3/3 (3y - 9) = 0/3
3y -9 = 0
Add 9 to each side
3y -9+9 = 0+9
3y =9
Divide by 3
3y/3 = 9/3
y =3
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Related Questions
About 60% of the normal human
being's body weight is composed of
water. How much of a 125 pound
person is water weight?
F 72 pounds H 76 pounds
G 75 pounds I 80 pounds
Answers
The water weight of a 125lb person is 75lbs.
Y=2x
x+y=9
Solve using substitution
Answers
Answer:
x = 3; y = 6
Step-by-step explanation:
x + 2x = 9
3x = 9
x = 3
On Thursday the high temperature was 0 °C. If it was three degrees colder on Friday, what was the temperature?
Answers
Answer:
-3 degrees C
Step-by-step explanation:
We need to subtract 3 degrees from Thursdays temperature
0 - 3
-3 degrees C
If r(x) = 3x - 1 and s(x) = 2x + 1, which expression is equivalent to
$(6)-1
276)+1
(6)
2(6) + 1
36-1
26+1
(6)-1
(6)+1
Answers
If r(x) = 3x - 1 and s(x) = 2x + 1, which expression is equivalent to (r/s)(6) is: A. [tex]\frac{3(6) - 1}{2(6)+1}[/tex]
In Mathematics, an algebraic expression is a type of mathematical equation which is typically used for showing the relationship existing between two (2) or more variables, numerical quantities (constants), accompanied with the use of different mathematical operations.
Based on the information provided, the quotient of the two expressions can be computed as follows;
[tex]\frac{r(x)}{s(x)} =\frac{3x - 1}{2x+1} \\\\[/tex]
When the value of x is 6, the output value of the expression
[tex]\frac{r}{s}(6) =\frac{3(6) - 1}{2(6)+1}[/tex]
Complete Question;
If r(x) = 3x - 1 and s(x) = 2x + 1, which expression is equivalent to (r/s)(6)?
I need help here been stuck here ?!
Answers
Answer:
Step-by-step explanation:
Angle 9 = 85 degrees
Angle 9 and < 11 are vertical angles
Vertical angles are equal
<11 = 85 degrees
Julian spent $15.00 to purchase some notebooks that cost $3.50 each and some pens that cost $4.50 each. Assuming he bought at least one notebook, what is the greatest number of pens Julian could have purchased?
Answers
Answer:
If Julian bought 1 notebook, he would only have enough money for 2 pens
Step-by-step explanation:
Pen = $4.50
Notebook = $3.50
2 pens = $9.
9 + 3.50 = 12.50.
15 - 12.50 = 2.50.
$2.50 is not enough money for another notebook or pen.
Answer:
2 notebooks.
Step-by-step explanation:
To evaluate this you just have to create an equation to solve this problem, it says that Julian has $15 in total, and he has to buy at least one notebook, so you´d have to withdraw the money of a notebook from the total, and the pens cost 4.50 each, we will be expressing the number of pens by "X" and the number of notebooks by "y" so your equation would be like this:
[tex]4.5x+3.5y=15[/tex]
The number of notebooks is one, so you can put it into the equation:
[tex]4.5x+3.5y=15[/tex]
[tex]4.5x+3.5(1)=15[/tex]
Now you clear "x"
[tex]4.5x=15-3.5[/tex]
[tex]4.5x=11.5[/tex]
[tex]x=\frac{11.5}{4.5}[/tex]
[tex]x=2.55[/tex]
Since he can not buy .55 of a pen, he will only be able to buy 2 pens.
f(n + 1) = f(n) – 8. If f(1) = 100, what is f(6)?
Answers
[tex]f(n+1)=f(n)-8\\f(1)=100\\\\f(2)=100-8=92\\f(3)=92-8=84\\f(4)=84-8=76\\f(5)=76-8=68\\f(6)=68-8=60[/tex]
Express 45 = x as a logarithmic equation.
Answers
Answer:
[tex]5 = log_{4}x[/tex]
Step-by-step explanation:
You know that [tex]45=4^{5}[/tex]
Then: [tex]4^{5}=x[/tex]
Taking log with base 4 in both sides, we have:
[tex]log_{4} 4^{5}=log_{4}x[/tex]
Applying the logarithmic rules, we have:
[tex]log_{4}4^{5}=log_{4}x[/tex] → [tex]5log_{4}4=log_{4}x[/tex]
→ [tex]5 = log_{4}x[/tex]
In conclusion, 45 = x expressed as a logarithmic equation equals: [tex]5 = log_{4}x[/tex]
Answer:
[tex]4^5=x[/tex] as a logarithmic equation [tex]\log_4 (x)=5[/tex]
Step-by-step explanation:
Given : Expression [tex]4^5=x[/tex]
To find : Express the expression as a logarithmic equation?
Solution :
Expression [tex]4^5=x[/tex]
Taking log with base 4 both side,
[tex]\log_4(4^5)=\log_4 (x)[/tex]
Using logarithmic property, [tex]\log_a a^b=b[/tex]
[tex]5=\log_4 (x)[/tex]
Therefore, [tex]4^5=x[/tex] as a logarithmic equation [tex]\log_4 (x)=5[/tex]
Susan is planting marigolds and impatiens in her garden. Each marigold costs $9, and each impatien costs $7. Susan wants the number of marigolds to be more than twice the number of impatiens. She has a maximum of $125 to spend on the plants. This situation can be modeled by the following system of inequalities.
Which statement describes the system of inequalities?
A.
The system represents the minimum amount that Susan can spend on impatiens, x, and marigolds, y, and the relationship between the number of impatiens and marigolds.
B.
The system represents the maximum amount that Susan can spend on marigolds, x, and impatiens, y, and the relationship between the number of marigolds and impatiens.
C.
The system represents the minimum amount that Susan can spend on marigolds, x, and impatiens, y, and the relationship between the number of marigolds and impatiens.
D.
The system represents the maximum amount that Susan can spend on impatiens, x, and marigolds, y, and the relationship between the number of marigolds and impatiens.
Answers
Answer:
B.
The system represents the maximum amount that Susan can spend on marigolds, x, and impatiens, y, and the relationship between the number of marigolds and impatiens.
Answer:
B.
The system represents the maximum amount that Susan can spend on marigolds, x, and impatiens, y, and the relationship between the number of marigolds and impatiens.
Find the standard deviation of 21, 31, 26, 24, 28, 26
Answers
Given the dataset
[tex]x = \{21,\ 31,\ 26,\ 24,\ 28,\ 26\}[/tex]
We start by computing the average:
[tex]\overline{x} = \dfrac{21+31+26+24+28+26}{6}=\dfrac{156}{6}=26[/tex]
We compute the difference bewteen each element and the average:
[tex]x-\overline{x} = \{-6,\ 5,\ 0,\ -2,\ 2,\ 0\}[/tex]
We square those differences:
[tex](x-\overline{x})^2 = \{36,\ 25,\ 0,\ 4,\ 4,\ 0\}[/tex]
And take the average of those squared differences: we sum them
[tex]\displaystyle \sum_{i=1}^n (x-\overline{x})^2=36+25+4+4+0+0=69[/tex]
And we divide by the number of elements:
[tex]\displaystyle \sigma^2=\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n} = \dfrac{69}{6} = 11.5[/tex]
Finally, we take the square root of this quantity and we have the standard deviation:
[tex]\displaystyle\sigma = \sqrt{\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n}} = \sqrt{11.5}\approx 3.39[/tex]
To find the standard deviation of the set 21, 31, 26, 24, 28, 26, first calculate the mean, then the squared deviations from the mean, followed by the variance, and finally take the square root of the variance. The standard deviation is approximately 2.52.
The question asks how to find the standard deviation of the numbers 21, 31, 26, 24, 28, 26. To calculate the standard deviation, follow these steps:
Find the mean (average) of the data set. Subtract the mean from each number to get the deviations from the mean, then square each result. Find the average of these squared deviations, which is the variance. Take the square root of the variance to get the standard deviation.
Let's calculate it together:
Mean = (21 + 31 + 26 + 24 + 28 + 26) / 6 = 26 Squared deviations: (5^2) + (5^2) + (0^2) + (2^2) + (2^2) + (0^2) = 38 Variance = 38 / 6 = 6.33 (rounded to two decimal places) Standard Deviation = √6.33 = 2.52 (rounded to two decimal places)
Therefore, the standard deviation of the data set is approximately 2.52.
Please look at attachment. Has all info needed. Need help
Answers
Step-by-step explanation:
When the object hits the ground, h = 0.
0 = -21.962x + 114.655
x = 5.2
From the table, the object landed at x = 4.6 seconds. So the line of best fit predicts a time 0.6 seconds greater than actual.
The original height is when x = 0.
h = -21.962(0) + 114.655
h = 114.7
So the line of best fit predicts the object was dropped from a height of 114.7 meters. This is higher than the actual 100 meters.
At x = 3.5:
h = -21.962(3.5) + 114.655
h = 37.8
So the line of best fit estimates the object reached a height of 37.8 meters after 3.5 seconds.
We know that at x = 0, h = 114.7. This is more than 4 meters from the actual initial height of 100 m.
Therefore, the answer must be A.
Answer:
A. According to the line of best fit, the object would have hit the ground 0.6 seconds later than the actual time the object hit the ground.
Step-by-step explanation:
Which is a factor of x2 + 5x – 24?
O
(x-6)
(x + 6)
(X-8)
(X + 8)
Answers
Answer:
the answer would be d
Step-by-step explanation:
The graphs of f(x) =2/3x and g(x) =2/3x-2 are shown below.
Answers
Y1=2/3x , Y2=2/3x-2
those are the graph of the functions
Michael and Tom are brothers. Their combined age is 20, and Tom is 4 years older than Michael. What are Michael and Tom’s ages?
Answers
Answer:
Micheal is 8, and Tom is 12 years old.
Step-by-step explanation:
To solve this, we can set each of their ages as a variable. Let's say Michael's age is x.
We know Tom is 4 years older than Michael, so Tom's age is x+4.
We also know that their combined age is 20, so if we add both of their ages, we should get 20.
Solving;
[tex]x + (x+4) = 20\\2x+4 = 20\\2x=16\\x=8.[/tex]
So Michael's age is 8, and Tom is 12.
Answer:
Tom is 12 and Michael is 8
Step-by-step explanation:
What is the perimeter of an equilateral triangle if each side is (x+3)?
Answers
Answer:
all work is shown and pictured
iiiiiiiiytffhjhffjdjhdhdhdhdhhdhdd
Answers
Answer:
x = 30
Step-by-step explanation:
The sum of the 3 interior angles of a triangle = 180°, hence
x + x + 10 + 3x + 20 = 180
5x + 30 = 180 ( subtract 30 from both sides )
5x = 150 ( divide both sides by 5 )
x = 30
the graph of y= sqrtx is translated 4 units left and 1 unit up to create the function h(x). the graph of h(x) is shown on the coordinate grid. what is the range of h(x)?
Answers
Answer:
C. [tex]\{y|y\ge 1\}.[/tex]
Step-by-step explanation:
Consider the parent function [tex]f(x)=\sqrt{x}.[/tex]
The domain of this function is [tex]x\ge 0;[/tex]The range of this function is [tex]y\ge 0.[/tex]Now consider given function [tex]h(x)=\sqrt{x+4}+1[/tex] (translated 4 units left and 1 unit up.)
The domain of this function is [tex]x\ge -4;[/tex]The range of this function is [tex]y\ge 1.[/tex]Answer:
The range of the function h(x) is [tex]R=\{y|y\geq 1\}[/tex]
Step-by-step explanation:
Given : The graph of [tex]y=\sqrt{x}[/tex] is translated 4 units left and 1 unit up to create the function h(x).
To find : What is the range of h(x)?
Solution :
When the graph f(x) is translated then
1) f(x)+b shifts the function b units upward.
2) f(x + b) shifts the function b units to the left.
The graph of [tex]y=\sqrt{x}[/tex] is translated 4 units left.
i.e. [tex]y=\sqrt{x+4}[/tex]
The graph of [tex]y=\sqrt{x}[/tex] is translated 1 unit up.
i.e. [tex]y=\sqrt{x+4}+1[/tex]
So, The required function h(x) is [tex]h(x)=\sqrt{x+4}+1[/tex]
The range of a function is set of output values produce by a function.
In the given graph, y value is always greater than and equal to 1.
So, The range of the function h(x) is [tex]R=\{y|y\geq 1\}[/tex]
what is the area of the polygon given below?
Answers
Answer:
C 340 square units
Step-by-step explanation:
Divide it into smallest pieces.
I see two rectangles that I'm going to do.
The long rectangle reading the paper from bottom to top is a 4 by (4+11+4) rectangle.
The wide rectangle reading the paper from left to right is a 24 by 11 rectangle.
We need to find the area of both of these rectangles and then just add them together to get the total area.
So first rectangle has area 4(19)=76 and the second rectangle has area 264. The sum of these two numbers are 340 square units.
Hello There!
The answer would be 340 square units
First, let's find the area of our small rectangle located to the left. The formula for a rectangle is width*height so we would multiply19 because we know that on our right rectangle the height is 11 and we would add 4 to that and add another 4 to that to get our length of our rectangle on the left.
Next, we multiply 24 by 11 because we are using our same formula for the rectangle on the right and once we multiply, we get a product of 264.
Finally, we add 264 and our area of the rectangle on the right together and get a sum of 340 square units.
Have A Great Day!
find the slope and y-intercept of each line y=4x+1
Answers
Answer:
Step-by-step explanation:
the slope is 4
y int is 1
simplify
(18-9.(-4/3)+10×2)
Answers
Answer:
what is the period after the 9?
Answer:
50
Step-by-step explanation:
Evaluate the products before addition
18 - (9 × - [tex]\frac{4}{3}[/tex] ) + (10 × 2)
= 18 - (- 12) + 20
= 18 + 12 + 20
= 50
Nick borrowed $1250, to be repaid after 5 years at annual simple interest rate of 7.25%. how much interest will be due after 5 years? how much will nick have to repay.
Answers
[tex]\bf ~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \$1250\\ r=rate\to 7.25\%\to \frac{7.25}{100}\dotfill &0.0725\\ t=years\dotfill &5 \end{cases} \\\\\\ I=(1250)(0.0725)(5)\implies 453.125 \\\\\\ \stackrel{\textit{he'll have to repay}}{1250+453.125}\implies 1703.125[/tex]
Please explain your answer
Answers
Answer: Blueberry = $6, Pumpkin = $17
Step-by-step explanation:
Let B represent blueberry pie and P represent pumpkin pie.
Kim: 12B + 8P = 208
- Krystal: 10B + 8P = 196
2B = 12
B = 6
Input B = 6 into either of the equations to solve for P
10B + 8P = 196
10(6) + 8P = 196
60 + 8P = 196
8P = 136
P = 17
What is the factored form of the polynomial?
x2 - 12x + 27?
(x + 4)(x+3)
(x - 4)(x + 3)
(x + 9)(x + 3)
(x-9)(x - 3)
Answers
Answer:
The answer is option D.
Step-by-step explanation:
Answer:
D: Answer:(x-9)(x-3)
Step-by-step explanation:
-2x + 3 < 5
solve and show steps please
Answers
Answer:
x < -1
Step-by-step explanation:
5 - 3 = 2
-2x < 2
x < -1
Answer:
Answer is x > -1
Step-by-step explanation:
Because -2x + 3 < 5
-3 -3 minus 3 on both sides
Then: -2x < 5
-2 -2 divide negative 2 on both sides
And get x > -1, Because if you divide by negative numbers the sign always flips.
Sorry i had to reedit it's -1 because you divide my bad.
Hope my answer has helped you and if not i'm sorry.
What is the solution to the inequality? 17 < 9 + x
Answers
Answer:
x > 8
Step-by-step explanation:
Given
17 < 9 + x ( subtract 9 from both sides )
8 < x , hence
x > 8
what is the differnce between (-4)-6
Answers
Answer:
24
Step-by-step explanation:
(-4) -6? well it equals 24 because a negative plus a negative equals a positive.
Hope my answer has helped you! If not i'm sorry.
Answer:
The correct answer is -10. 24 isn't correct ^^^^.
Step-by-step explanation:
Write the following equation in standard form : 8/7x^3 + x^4 + 6x +1
Answers
Answer:
x^4 +8/7x^3 + 6x +1
Step-by-step explanation:
8/7x^3 + x^4 + 6x +1
Standard from is from the largest power to the smallest power
x^4 +8/7x^3 + 6x +1
Find a1, for the given geometric series. Round to the nearest hundredth if necessary. Sn= 44,240, r= 3.8, n= 9
Answers
[tex]\bf \qquad \qquad \textit{sum of a finite geometric sequence} \\\\ \displaystyle S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad \begin{cases} n=\textit{last term's}\\ \qquad position\\ a_1=\textit{first term}\\ r=\textit{common ratio}\\ \cline{1-1} n=9\\ r=3.8\\ \stackrel{S_n}{S_9}=44240 \end{cases}[/tex]
[tex]\bf 44240=a_1\left( \cfrac{1-3.8^9}{1-3.8} \right)\implies 44240\approx a_1\left( \cfrac{-165215.101}{-2.8} \right) \\\\\\ 44240\approx a_1(59005.393)\implies \cfrac{44240}{59005.393}\approx a_1\implies \stackrel{\textit{rounded up}}{0.75=a_1}[/tex]
When all the terms of a geometric sequence are added, then that expression is called geometric series. The first term of the given geometric series is 0.75.
What is a geometric series?When all the terms of a geometric sequence are added, then that expression is called geometric series.
What is the sum of terms of a geometric sequence?Let's suppose its initial term is, the multiplication factor is r
and let it has total n terms, then, its sum is given as:
[tex]S_n = \dfrac{a(r^n-1)}{r-1}[/tex]
(sum till nth term)
Given the sum of the geometric series is 44,240, while the number of terms is 9. Also, the common ratio of the series is 3.8. Thus, we can write,
Sₙ = a(rⁿ-1)/(r-1)
44240 = a(3.8⁹ - 1)/(3.8 - 1)
44240 = a 59005.3933
a = 0.75
Hence, the first term of the given geometric series is 0.75.
Learn more about the Sum of terms of geometric sequence:
brainly.com/question/1607203
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What is the area of the kite? Height of 6ft base of 14ft. 21 square feet 40 square feet 42 square feet 84 square feet
Answers
Answer:area is 84
Step-by-step explanation:
6*14
Answer:
its c 42 square feet
Step-by-step explanation:
what is the answer for this math problem
Answers
7/8 is tricky to do on a computer, but I will say that it is 87.5 percent or 0.875.
Do you know how to do normal long division? This is like that. Just after the decimal point, drop a 0 down.
I hope this helps!
Answer:
7/8 = .875 7/8=87.5%
Step-by-step explanation:
Divide 1/4(.25) by 2 and you get 1/8(.125)
Multiply .125 by 7 which gives you .875.
For the percent just multiply .875 by 100
Hope this helps.