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 1186745: 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 30 minutes, the planes are 275 miles apart. What are their speeds Answer by ikleyn(52898) (Show Source):
30 minutes = 0.5 of an hour.
The total distance equation is
0.5x + 0.5(x+50) = 275
Simplify and solve
x + 25 = 275
x = 275 - 25 = 250.
ANSWER. 250 mph for the slower plane (the San Diego plane). 250 + 25 = 275 mph for the faster plane (San Francisco).
