SOLUTION: Two planes leave los Angeles at the same time. One head south to San Diego, while the other heads north to San Francisco. The San Diego plane flies 50mph slower than the San Franci
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Question 890089: Two planes leave los Angeles at the same time. One head south to San Diego, while the other heads north to San Francisco. The San Diego plane flies 50mph slower than the San Francisco plane. In half hour the planes are 275 miles apart. What are their speeds? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Think of this as one of the planes flying away
from the other at the sum of their speeds
and the other plane not moving
( parked on runway )
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Let = the speed of the faster plane in mi/hr = the speed of the slower plane
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The LA to SD plane's speed is 300 mi/hr
The LA to SF plane's speed is 250 mi/hr
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check:
The LA to SD plane:
(1)
The LA to SF plane:
(2)
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(1) mi
(2) mi mi
OK
