Seudónimo Seudónimo

02-12-2016
Mathematics

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How can you use 10% of the meal cost to find a 15% tip? What about a 20% tip?

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shauna02 shauna02

02-12-2016

to find 20%, find 10% and double the answer
to find 15%, find 10% and half the answer and add it on to 10% of the original number

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