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In Mathematics / Middle School | 2014-10-19

A model airplane flies 18 feet in 2 seconds. What is the airplane's speed in miles per hour? Round your answer to the nearest hundredth.

Asked by sandwichlover

Answer (2)

F or m u l a f or s p ee d v = t s ​ s = 18 f ee t t = 2 seco n d s v = 2 18 ​ = 9 seco n d f ee t ​ 1 f oo t = 0.000189393939 mi l es 1 seco n d = 3600 1 ​ h o u r 9 seco n d f ee t ​ = 9 ∗ 3600 1 ​ 0.000189393939 ​ = 6 , 156 h o u r mi l e ​ ≈ 6 , 16 h o u r mi l e ​

Answered by luana | 2024-06-10

The speed of the model airplane is approximately 6.14 miles per hour. This is found by first calculating its speed in feet per second and then converting it to miles per hour. The final answer is rounded to the nearest hundredth.
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Answered by luana | 2024-10-02

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