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3 years ago

95% of people in my street have a car. There are 160 people in my street. how many do not have a car?

Mathematics

1 answer:

Over [174]3 years ago

7 0

Answer:

8 people on your street do not have a car.

Step-by-step explanation:

So we know that 95% of people have a car. There are 160 people on your street and your are trying to find out how many people do not have a car.

If 95% of people have a car, then 100% - 95% of people, or 5% of people, do not have a car. Using this we can find how many of the 160 people on your street do not have a car. To do this, we would multiply the percent of people who do not have a car (5%, or 0.05) by the number of people on your street (160).

5% × 160 = 0.05 × 160 = 8

8 people on your street do not have a car.

I hope this helps. :)

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What is the diameter of a hemisphere with a volume of 2233\text{ cm}^3,2233 cm 3 , to the nearest tenth of a centimeter?

Agata [3.3K]

Answer:

The diameter of the hemisphere is 20.4 centimeters.

Step-by-step explanation:

The volume of an hemisphere is given by:

$V = \frac{2 \pi r^{3}}{3}$

In this problem, we have that:

$V = 2233$

$\frac{2 \pi r^{3}}{3} = 2233$

$2\pi r^{3} = 3*2233$

$r^{3} = \frac{3*2233}{2\pi}$

$r = \sqrt[3]{\frac{3*2233}{2\pi}}$

$r = 10.2$

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The diameter is double the radius. So:

2*10.2 = 20.4

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3 years ago

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astraxan [27]

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3 years ago

What is the answer

vichka [17]

An excluded value is one where the bottom of the fraction = 0.

In your case 1-3x=0
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