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3 years ago

I need help with problem 6) A. Please help.

Mathematics

1 answer:

vampirchik [111]3 years ago

5 0

Answer:

Step-by-step explanation:

The ratios are all 3 father steps to 5 son steps. Then ...

son-steps = 5/3·father steps

son-steps = 5/3·36 = 60

and

father-steps = 3/5·son-steps

father-steps = 3/5·30 = 18

___

As a check, you can realize that the numbers in the first blank, 36:60, are double those in the second blank, 18:30. The first of these, 36:60, is 3 times the row underneath it, 12:20.

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maksim [4K]

Answer:

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Step-by-step explanation:

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3 years ago

What is the approximate diameter of a tire that will make 775 complete rotations in one mile? (Note: there are 5280 feet

GalinKa [24]

Answer:

About 2.17 feet.

Step-by-step explanation:

Let d represent the diameter of the tire.

Then the circumference of the tire will be:

$C=d\pi$

So, the tire will travel dπ miles after one rotation.

After 775 rotations, the total miles traveled should be 5280 feet. Thus:

$775(d\pi)=5280$

Solve for d:

$\displaystyle d=\frac{5280}{775\pi}$

Approximate:

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3 years ago

A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer corre

boyakko [2]

Answer:

16 problems.

Step-by-step explanation:

100% divided by 20 questions.

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Grade of 80% divided by points per question.

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3 years ago

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den301095 [7]

Answer:

Step-by-step explanation:

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2 years ago

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