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OpenStudy (anonymous):
A Piper Cub has an average air speed that is 10mph faster than a Cessna 150 airplane. If the combined distance traveled by these two small planes is 690 miles after 3 hr, what is the average speed of each plane?
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OpenStudy (anonymous):
let x be speed 1, y be speed 2. 3(x+y) = 690. x = y + 10. Can you solve this?
OpenStudy (anonymous):
umm, sure hold on
OpenStudy (anonymous):
Y= 110 X= 120
OpenStudy (anonymous):
I'd like to know if I'm correct.
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