Question

I forgot how to do these types of problems..

A cyclist rides his bike at a speed of 27 miles per hour. What is this speed in feet per second? How many feet will the cyclist travel in 10 seconds? In your computations, use the fact that 1 mile is equal to 5280 feet. Do not round your answers. ​

Answer 1

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An hour is 60 min. times 60 seconds, or 3600 seconds.
A mile is 5280 feet so 27 miles is 27 * 5280 or 142,560 feet.
So we're saying he goes 142560 feet in 3600 seconds. Divide 142560/3600 and we get 39.6 feet per second.
In ten seconds he'll go 10 times that or 396.0 feet.