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26-07-2017
Mathematics

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Elena's daughter sold 78 boxes of Girl Scout cookies. She was told that this amount represented 20% of the troops sale. How many boxes did the room sell

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haylbop44 haylbop44

26-07-2017

390.

If you use cross multiplication you'll get 20x=7800,
divide both sides by 20
and you have x=390

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