SOLUTION: Linda and Mary start at the same point and walk in opposite directions. Linda walks at 5 miles per hour and Mary walks at 7 miles per hour. How long will it be until they are 33 mi

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Linda and Mary start at the same point and walk in opposite directions. Linda walks at 5 miles per hour and Mary walks at 7 miles per hour. How long will it be until they are 33 mi      Log On


   



Question 1009411: Linda and Mary start at the same point and walk in opposite directions. Linda walks at 5 miles per hour and Mary walks at 7 miles per hour. How long will it be until they are 33 miles apart?
Answer by ikleyn(52776) About Me  (Show Source):
You can put this solution on YOUR website!
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The rate at which the distance between them is increased every hour is 7 = 5 = 12 miles per hour.

Hence, they will be in 33 miles apart in 33%2F12 hour.

It is 29%2F12 = 23%2F4 hour.