SOLUTION: He-ping's and Melody's houses are separated by a stretch of road that is 120 kilometers long. One day, they decide to meet up somewhere in the middle and spend the afternoon togeth

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Question 702920: He-ping's and Melody's houses are separated by a stretch of road that is 120 kilometers long. One day, they decide to meet up somewhere in the middle and spend the afternoon together. He-ping leaves his house and travels at 87 kilometers per hour at the same time that Melody leaves her house and drives 90 kilometers per hour. How long will it be until they meet?

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Knowing that the rates are additive can help. Imagine they both started from the same end (not different ends), one vehicle instead of each person's separate one were doing all the traveling, and it wants to reach the other end.
%2887%2B90%29%2At=120
t=120%2F%2887%2B90%29