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Mathematics 21 Online
OpenStudy (anonymous):

Cheryl drove 4 hours at a constant rate to travel 160 miles. At what rate did she drive?

OpenStudy (btaylor):

rate = distance/time, so rate = (160 miles)/(4 hours), which equals 40 mph

OpenStudy (anonymous):

160 miles in 4 hours... that's about how many miles in 1 hour...

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