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

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(52908) (Show Source): You can put this solution on YOUR website!
.


    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).

Solved.

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