Question

Robert can run 1/2 of a mile in 1/15 of an hour. How many miles can Robert run in an Hour?

Answer 1

1/2) / (1/15) = x / 1.....1/2 mile to 1/15 hr = x miles to 1 hr

cross multiply

1/15x = 1/2

x = 1/2 * 15

x = 15/2 or 7 1/2 miles per hour

Hope this helps

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Answer 2

(1/2) / (1/15) = x / 1.....1/2 mile to 1/15 hr = x miles to 1 hr
cross multiply
1/15x = 1/2
x = 1/2 * 15
x = 15/2 or 7 1/2 miles per hr