you run 3 miles up a hill and 3 miles down a hill. You run 25% faster going down the hill than going up the hill. let r be your speed( in miles per hour) while running up the hill. Write an expression that represents the amount of time you spend running on the hill. Please help ME!!!!

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11-05-2015
Mathematics

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you run 3 miles up a hill and 3 miles down a hill. You run 25% faster going down the hill than going up the hill. let r be your speed( in miles per hour) while running up the hill. Write an expression that represents the amount of time you spend running on the hill. Please help ME!!!!

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Mikayla2824idn Mikayla2824idn · Answer 1 · 2015-05-11T16:56:21-04:00

Mikayla2824idn Mikayla2824idn

11-05-2015

t=(3/r) + (3/1.25r)

You add .25 when going down the hill to r.

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