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Mathematics 7 Online
OpenStudy (anonymous):

Charlie runs at a speed of 3 yards per second. About how many miles per hour does Charlie run?

OpenStudy (anonymous):

about 6.13636364 miles per hour

OpenStudy (anonymous):

Can you explain how to do it?

OpenStudy (anonymous):

He runs 3 yards in 1 second. There are 3600 seconds in 1 hour, so he runs 3 * 3600 yards in 1 hour 3 * 3600 = 10,800 His speed is 10,800 yd/hr There are 1760 yards in a mile, so his speed is: 10,800/1760 mph = 6.14 mph

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