SOLUTION: I am having a hard time coming up with a proper equation to this problem, I have an answer but it doesn't seem right. A bus, carrying the members of a marching band, and a truck

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Question 588779: I am having a hard time coming up with a proper equation to this problem, I have an answer but it doesn't seem right.
A bus, carrying the members of a marching band, and a truck, carrying their instruments, leave a high school at the same time. The bus travels at 65 miles per hour and the truck at 55 miles per hour. In how many hours will they be 75 miles apart?
Thank you

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
So what is your answer that doesn't seem right and how did you get it?
65x+=75+55x
10x=75
x=7.5 hours