SOLUTION: Hi, I am having trouble figuring out the correct equation to form from the following word problem: A bus travels 87.5 kilometers to another town at a speed of 72.0 kilometers/hour.

Question 957778: Hi, I am having trouble figuring out the correct equation to form from the following word problem: A bus travels 87.5 kilometers to another town at a speed of 72.0 kilometers/hour. What must be its return rate if the total speed for the round trip is to be 2.50 hours?
Could you please help me form the equation necessary to solve this problem? I can solve equations, I just have trouble forming them from word problems.
Thank you for your time.
Jodie
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Hi, I am having trouble figuring out the correct equation to form from the following word problem: A bus travels 87.5 kilometers to another town at a speed of 72.0 kilometers/hour. What must be its return rate if the total speed for the round trip is to be 2.50 hours?
Could you please help me form the equation necessary to solve this problem? I can solve equations, I just have trouble forming them from word problems.
***
let x=return rate
travel time=distance/rate
..

lcd:72x
87.5x+87.5*72=72x*2.5
87.5x+6300=180x
92.5x=6300
x=68.1
return rate=68.1 km/hr
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