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Mathematics 17 Online
OpenStudy (anonymous):

Susan can bake cookies at the rate of 45 cookies per half-hour. How many hours does it take Susan to bake 225 cookies?

OpenStudy (anonymous):

225/45/2

OpenStudy (anonymous):

Given 45x = 225 divide both sides by 45 x = 5 half hours or 2.5 hours

OpenStudy (anonymous):

Thanks :D

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