Mathematics, 12.10.2019 17:20 crawford184232323234
a plane traveling from phoenix to san francisco with a tailwind of 35 miles per hour takes 2.5 hours. returning with the headwind, it takes the same plane 2 hours and 45 minutes. what is the average speed of the plane in calm conditions?
a. 695 miles/hour
b. 715 miles/hour
c. 735 miles/hour
d. 755 miles/hour
Answers: 3
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a plane traveling from phoenix to san francisco with a tailwind of 35 miles per hour takes 2.5 hours...
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