SOLUTION: It takes 12 hours to drive a truck to its delivery point and back. The rate going 50 mph, the rate returning is 70 mph. Find the one way distance

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Question 858958: It takes 12 hours to drive a truck to its delivery point and back. The rate going 50 mph, the rate returning is 70 mph. Find the one way distance
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Let t = time going.
12-t = time returning, since the total of these times is 12.

Distance going is the same as distance returning.
RT=D for typical uniform rates travel.

50t=70%2812-t%29
50t=840-70t
120t=840
highlight_green%28t=7%29;

Now, what can be done with the value for t?

... See?

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

It takes 12 hours to drive a truck to its delivery point and back. The rate going 50 mph, the rate returning is 70 mph. Find the one way distance


Let distance be D

Then: D%2F50+%2B+D%2F70+=+12

Solve for D to get the distance.

You can do the check!! 



If you need a complete and detailed solution, let me know!!



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