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GarryVolchara [31]
3 years ago
9

A store purchased a DVD for 12.00 and sold it to a costumer for 50 percent more than the purchase price. The costumer was charge

d a 7 percent tax when the DVD was sold. What was the customer total cost for the DVD?
Mathematics
1 answer:
likoan [24]3 years ago
6 0

Answer:

19.26

Step-by-step explanation:

price sold for= 12×150%

= 18

total cost = 18 × 107%

= 19.26

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What is the radius of a sphere with a volume of 1/6 pie
Yakvenalex [24]

Answer:

\large\boxed{the\ radius\ R=\dfrac{1}{2}}

Step-by-step explanation:

The formula of a volume of a sphere:

V=\dfrac{4}{3}\pi R^3

We have

V=\dfrac{1}{6}\pi

Substitute:

\dfrac{4}{3}\pi R^3=\dfrac{1}{6}\pi        <em>divide both sides by π</em>

\dfrac{4}{3}R^3=\dfrac{1}{6}          <em>multiply both sides by 3</em>

3\!\!\!\!\diagup^1\cdot\dfrac{4}{3\!\!\!\!\diagup_1}R^3=3\!\!\!\!\diagup^1\cdot\dfrac{1}{6\!\!\!\!\diagup_2}

4R^3=\dfrac{1}{2}          <em>divide both sides by 4</em>

R^3=\dfrac{1}{2}:4\\\\R^3=\dfrac{1}{2}\cdot\dfrac{1}{4}\\\\R^3=\dfrac{1}{8}\to R=\sqrt[3]{\dfrac{1}{8}}\\\\R=\dfrac{\sqrt1}{\sqrt8}\\\\R=\dfrac{1}{2}

3 0
3 years ago
What is the percent of change from 14 inches 26 inches
PolarNik [594]
To find the percent of anything, you divide what you have from the total (or the smaller number over the bigger number). In this case, you will do 14/26.
14/26=0.53846
I'm going to round to the hundredths: 0.54
Move the decimal place two times to the right: 54
The percent change from 14 inches to 26 inches is 54%
4 0
2 years ago
a quantity of y varies partly as x and partly as the square of x. when x=2 ,y=14 and when x=5, y=65. Find y when x=-2​
lorasvet [3.4K]
X\times 2 bc it is correct I think I’m not sure but yeah
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Marissa got an 85% on her math quiz. If she got 34 questions right, how many questions were on the test?
irinina [24]
40

34÷85×100=40

Hope it helps
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A box of business cards is in the shape of a rectangular prism. The
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6? 12 times 5 times 6 equals 360
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