SOLUTION: A plane left the airport at 3 P.M., flying west at the rate of 250 mph. At 3:30 P.M., another plane left the airport flying west at 300 mph. At what time did the second plane overt
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Question 901201: A plane left the airport at 3 P.M., flying west at the rate of 250 mph. At 3:30 P.M., another plane left the airport flying west at 300 mph. At what time did the second plane overtake the first plane?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
This solution analysis will use time quantities instead of points in time.
Thirty minutes means half hour.
____________________speed____________time___________distance
EARLY_______________250______________t+1/2__________
LATE________________300_______________t_____________
Using RT=D rule for uniform rates of travel,
The distance will be equal when the late plane going faster, overtakes
the earlier plane going slower.
Solve for in the equation, .
First simplification, .
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