Story problem help?

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Solve the problem.

4) Jim can run 5 miles per hour on level ground on a still day. One windy day, he runs 10 miles with the wind, and in the same amount of time runs 7 miles against the wind. What is the rate of the wind?

How do I set up this problem? I DON'T want the answer, I just have no idea how to set this problem up, once I get it set up I know I can solve it! Can you help please?

Thanks for any help in advance!

2007-04-16 13:33:15 · 2 answers · asked by jennifermlayne 2 in Science & Mathematics ➔ Mathematics

2 answers

x = wind speed
(x+5)/10 = (5-x)/7
50-10x=7x+35
15=17x
15/17 = speed of wind

2007-04-16 13:43:15 · answer #1 · answered by ironduke8159 7 · 0⤊ 0⤋

Use d=rt

2007-04-16 20:40:56 · answer #2 · answered by samandmak 1 · 0⤊ 0⤋