SOLUTION: Two bicycles depart from Miami Beach going in opposite directions. The first bicycle is traveling at 10 miles per hour. The second bicycle travels at 5 miles per hour. How long

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Question 632392: Two bicycles depart from Miami Beach going in opposite directions. The first bicycle is traveling at
10 miles per hour. The second bicycle travels at 5 miles per hour. How long does it take until the bikes are 45 miles apart?
Can you show how the problem is set up, the work to solve the problem, along with the solution.
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
Two bicycles depart from Miami Beach going in opposite directions. The first bicycle is traveling at
10 miles per hour. The second bicycle travels at 5 miles per hour. How long does it take until the bikes are 45 miles apart? 
They are separating at the rate of (10+5) or 15 miles per hour.  Since
45 is 3 times 15  they will be 45 miles apart in 3 hours.

Edwin