Asked by abi

A model airplane flies 18 feet in 2 seconds. what is the airplane's speed in miles per hour? round your answer to nearest hundredth.
Answered by Ms. Sue
1 hour = 60 * 60 = 3,600 seconds

Solve this proportion.

18/2 = x/3,600

https://www.mathsisfun.com/algebra/proportions.html

Answered by abi
0.0025
Answered by Reiny
18 ft/ 2 sec

= (18/5280) miles / (2/3600) hrs
= (18/5280)(3600/2) mph
= appr 6.14 mph
Answered by Anonymous
126
Answered by chili
approx 16.4 mph
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