what equation is correct?

Mar 28th, 2015
Price: $5 USD

Question description

An airplane flew for 6 hours at an airspeed of x mph, and for 3 more hours at 225 mph. If the average airspeed for the entire flight was 400 mph, which of the following equations could be used to find x?

6x + 3(225)=400(9)

6x +9(225)=400(3)

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(Top Tutor) shashankmohore
School: Duke University

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