Alex made 3/5 of a batch of cookies in3/10 of an hour. How much time will it take him to make 1 full batch of cookies

asked Oct 2, 2016 226k views

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$((3)/(5))/((3)/(10))=(1)/(t)\\((3)/(10))/((3)/(5))=(t)/(1)\\((3)/(10)*10)/((3)/(5)*10)=t\\(3)/(6)=t\\t=(1)/(2)$

30 minutes

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