25-04-2017
Mathematics

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explain how to use a proportion to find 30% of a number

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arisisavalos17 arisisavalos17

25-04-2017

We're trying to find the missing PERCENT (out of the whole 100%). In a proportionthe cross-products are equal: So 3 times 100 is equal to 4 times the PERCENT. The missing PERCENT equals 100 times 3 divided by 4. (Multiply the two opposite corners with numbers; then divide by the other number.) I hope im right

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