SOLUTION: Taylor completed a trip in four hours. If Taylor had driven 12 mph faster, she would have completed the trip in 3 hours. what was Taylor's average speed for the trip?

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Question 772912: Taylor completed a trip in four hours. If Taylor had driven 12 mph faster, she would have completed the trip in 3 hours. what was Taylor's average speed for the trip?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!

TYPE_____________rate_____________time_______distance
Did Trip_________r________________4__________d=r*4
Hypothetical_____r+12_____________3__________d=(r+12)*3

Equate the distances according to d.
r%2A4=%28r%2B12%29%2A3
4r=3r%2B36
r=36
Taylor's speed was 36 mph.