Asked by Aly

A train travels at rate of 40 miles per hour for 3 hours. The train enigineer wants to make a trip back in 2 1/2 hours. Which equation can be used for r , the rate the train has to travel on the trip back?
A. r= 40 x 3/2.5
B. r= 40 x 3 x 2.5
C. r= 40 x 2.5/3
D. r= 40 x 2.5

Answers

Answered by jai
remember, speed(or rate) = distance/time,,
therefore, r = 40x3/2.5
--> letter A

so there,, :)
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