diegovh11081
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The movie house gives away a $5 coupon for every 4 movies purchased.They give away a bag of popcorn for every 3 movies purchased.How many movies would you have to purchase in all before receiving both $5 coupon and a bag of popcorn at the same purchase?

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QueenGinger
well to do this you would have to find the LCM (least common multiple) of 4 and 3. so, if you line up all of the multiples of 4
4,8,12,16,20,24,28,32,36,40....
and the multiples of 3
3,6,9,12,15,18,21,24,27,30,33....
the least multiple that they both have is 12

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