SOLUTION: If Jim road his bike 6 miles per hour one way and Sarah walked 1/3 of a mile per hour the other way, how long would it take them to be 21 miles apart?

Question 121090: If Jim road his bike 6 miles per hour one way and Sarah walked 1/3 of a mile per hour the other way, how long would it take them to be 21 miles apart?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
For each one, d = rxt
and the sum of their distances needs to be 21 mi
For Jim:

For Sarah:

multiply both sides by 3

hrs answer
or
hrs min
hrs min
I can check this. I should get the same answer
if Jim alone went 21 miles at 6.333 mi/hr

close enough
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