SOLUTION: Two jet planes simultaneously started traveling in opposite directions from the same airport. Four hours later they were 3800 miles apart. Find the rate of each plane, if one of th
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Question 1065920: Two jet planes simultaneously started traveling in opposite directions from the same airport. Four hours later they were 3800 miles apart. Find the rate of each plane, if one of them traveled 80 miles per hour faster than the other. Answer by ikleyn(52847) (Show Source):
The sum of their rates is = 950 mph.
Thus you have this system of two equations
A + B = 950,
A - B = 80.
Add the two equations and find A, the rate of the faster plane.
Then find B from either of two equations.
