SOLUTION: a family drove out to the Grand canyon averaging 35 mph they returned using the same route averaging 70 mph if they spenta total of six hours of driving time how far is the home

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Question 1111986: a family drove out to the Grand canyon averaging 35 mph they returned using the same route averaging 70 mph if they spenta total of six hours of driving time how far is the home to the grand canyon
Found 2 solutions by josgarithmetic, greenestamps:
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
%28RATE%29%28TIME%29=DISTANCE 
              RATE      TIME     DISTANCE
GOING         35        d/35       d
RETURN        70        d/70       d
TOTAL                    6


d%2F35%2Bd%2F70=6-------solving this answers the question.
-
2d%2F70%2Bd%2F70=6
3d%2F70=6
d%2F70=2
d=140

Answer by greenestamps(13198) About Me  (Show Source):
You can put this solution on YOUR website!


The speed returning was 2 times the speed going; that means the time required for the return trip was half the time required for the trip there.

Since they drove for a total of 6 hours, they spent 4 hours going and 2 hours returning.

Multiply the speed times the time for either the trip there or the return trip to find the distance between their home and the Grand Canyon:
35*4 = 140
70*2 = 140

Their home is 140 miles from the Grand Canyon.