SOLUTION: Maria drove to her grandmother�s house at an average speed of 60 miles per hour. On the way home, she averaged only 45 miles per hour due to traffic. If she spent a total of 3 1/2

Question 329399: Maria drove to her grandmother�s house at an average speed of 60 miles per hour. On the way home, she averaged only 45 miles per hour due to traffic. If she spent a total of 3 1/2 hours driving, how many miles is the trip to her grandmother�s house?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Rate*Time=Distance
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1.
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2.
Subsitute eq. 1 into eq. 2,

Then from above,

miles
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