Two planes left the same airport at the same time traveling in opposite directions. The first plane traveled at an average rate of 30 mph slower than the second plane. After 3 hours, the planes were 3150 miles apart. Enter an equation that can be used to determine when the planes are 3150 miles apart, where x represents the average rate of the second plane. Enter the average rate of change of the slower plane.

Question

Kyson Burns

12 May, 06:21

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Answers (1)

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Tyson Phillips · Answer 1

3150=3 (x-30) + 3x

3150=3x-90+3x

3240=6x

x=540

the second plane is flying at 540 mph while the first is flying at 510 mph