G

Use a proportion to solve the problem

9 Answers
Fast food. If four out of five doctors prefer fast food, then at a convention of 445 doctors, how many prefer fast food?
N

The answer is 356 doctors prefer fast food.

If you cross multiply, it will help you solve this problem. Sorry about the periods, it's the only way I could make this look right. Just ignore them, please.

4......n
_..X.._

5.....445

4 x 445 = 1780
1780 / 5 = 356

n = 356

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B

Let x doctors prefer fast food. Then we set up a proportion as
4: 5 = x: 445
Now, 5 * x = 4 * 445
x = 4 * 445/5 = 89 * 4 = 356
356 doctors prefer fast food.

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P

Multiply the proportion by the number of doctors

So

4 out of 5 doctors is a proportion of 4/5

So 4/5 x 445 = 356

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C

4 out of 5 doctors prefer fast food
? out of 445 doctors prefer fast food
4/5 x 445 = 4 x 89 = 356

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N

It will never work in my case do something better not putting questions on the internet

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K

4/5n=445
n=356

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I

78% of 58 is

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I

78% of 58 is

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I

78% of 58 is

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