arabelleamina arabelleamina

04-02-2018
Mathematics

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To decrease an amount by 20%, what do you multiply by?

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mathstudent55 mathstudent55

04-02-2018

An entire amount is 100%.
If you decrease it by 20%, you end up with 80% of the entire amount.
To find 80% of an amount, multiply the amount by 0.8

Answer: multiply by 0.8

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