Mathematics, 12.02.2020 02:45, kenny8556
Between 9 AM and 10 AM one hundred airplanes depart from Newark Airport. Ten of the airplanes were delayed by an hour each. Of the remaining airplanes, half left on time and half were delayed by an average of 20 minutes. To the nearest whole minute, how long was the average flight delay?
A. 15.
B. 18.
C. 27.
D. 30.
E. 40.
Answers: 3
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Which expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y
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