Two planes left the same airport traveling in opposite directions. The first plane left the airport at 2 P. M. traveling at an average rate of 500 mph. The second plane left the airport at 4 P. M. traveling at an average rate of 550 mph. When will the planes be 3100 miles apart?

Question

Mathematics

Eliza

26 March, 13:23

Two planes left the same airport traveling in opposite directions. The first plane left the airport at 2 P. M. traveling at an average rate of 500 mph. The second plane left the airport at 4 P. M. traveling at an average rate of 550 mph. When will the planes be 3100 miles apart?

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Answers (1)

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Leonard Gallagher · Answer 1

Ok so the first plane has 2 hours head start

means 2 times 500=1000=1000mile head start

so now

3100-1000=2100

in how many hours will the conbined planes travel 2100

500+550=1050

1050 times how many hours=2100

divide both sides by 1050

hours=2

4pm was our base time

4+2=6

answer is 6PM