An airplane flew for 8 hours at an airspeed of x miles per hour (mph), and for 7 more hours
at 325 mph. If the average airspeed for the entire flight was 350 mph, which of the following
equations could be used to find x ?
A. x + 325 = 2(350)
B. x + 7(325) = 15(350)
C. 8 x – 7(325) = 350
D. 8 x + 7(325) = 2(350)
E 8 x + 7(325) = 15(350)
Stacey Warren - Expert brainly.com
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e is the asnwer
8hour at speed of x so its 8x and 7 more means add 7 so + 7
at 325mph so its 7(325)
entire flight gives ou clue that its equal to
entire flight is 15 hours 8+7 and its average speed is 350 so
which gives you 8x + 7(325) = 15(350)
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