Asked by terri

What is the speed, in miles per hour, of a toy car that runs 40 feet in 8 seconds? Round your answer to the nearest whole number. (1 hour = 3600; 1 mile = 5280 ft)

Answers

Answered by Knights
1 hour = 60 minutes

1 minute = 60 seconds

so one hour = 3600 seconds

this is 3600/8 = 450 times of the given.

So in one hour, the car runs 450 * 40 = 18000 feet. 18000 / 5280 = roughly 3.4 miles

To the nearest whole number, the car goes at 3 miles per hour.
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