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Virty [35]
2 years ago
8

If a car travels 825 miles in 15 hours and the car travels at an constant rate how many miles does the car travel in 1 hour?

Mathematics
1 answer:
Doss [256]2 years ago
7 0

Answer:

55 miles

Step-by-step explanation:

Given data

DIstance =  825 miles

Time = 15 hours

Speed= distance/time

Speed= 825/15

Speed= 55  miles per hour

Given that we want to find the distance traveled in 1 hour, we have

Distance= Speed*time

Distance= 55*1

Distance= 55 miles

Hence the car will travel 55 miles in 1 hour

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Change each fraction or mixed number to a percent. a. 2⁄5 b. 7⁄20 c. 111⁄16 d. 141⁄4
tino4ka555 [31]

a. 2⁄5 = 0.4 = 40%

b. 7⁄20 = 0.35 = 35%

c. 11 1⁄16 = 6.9375  ≈694%

d. 141⁄4 = 35.25 = 3525%

6 0
3 years ago
Item 16 A sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. What is the difference of the vol
Zigmanuir [339]

Answer:

672\pi \text{ cm}^3.

Step-by-step explanation:

We have been given that a sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. We are asked to find the difference of the volumes of the spheres.      

We will use volume formula of sphere to solve our given problem.

\text{Volume of sphere}=\frac{4}{3}\pi r^3, where r is radius of sphere.

The difference of volumes would be volume of larger sphere minus volume of smaller sphere.

\text{Difference of volumes}=\frac{4}{3}\pi(\text{8 cm})^3-\frac{4}{3}\pi(\text{2 cm})^3

\text{Difference of volumes}=\frac{4}{3}\pi(512)\text{ cm}^3-\frac{4}{3}\pi(8)\text{ cm}^3

\text{Difference of volumes}=\frac{4}{3}\pi(512-8)\text{ cm}^3

\text{Difference of volumes}=4\pi(168)\text{ cm}^3

\text{Difference of volumes}=672\pi\text{ cm}^3

Therefore, the difference between volumes of the spheres is 672\pi \text{ cm}^3.

3 0
3 years ago
When 60% of a number is added to the number, the result is 192
Talja [164]

Answer:

the number (x) is 120.

Explanation:

<em>100% + 60% = 160% = 1.6 </em>

<em />

<em>(just multiply it by 1.6 because it is equal to 60%)</em>

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2 years ago
3x + 10y = 12, 3x - 8y = 12
weeeeeb [17]
Working attached below:

Hope this helps! Any questions let me know :)

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Answer:

y=-1

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it is a straight line graph with no gradient therefore no X value. It crosses the y axis at -1

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3 years ago
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