popopolol971 popopolol971

18-09-2021
Mathematics

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To decrease an amount by 19 ,multiply by

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shezfabz07 shezfabz07

18-09-2021

Think of the original amount as 100%

If we want 100% of something we multiply by 1

To get from 100% to 1, we divide the percentage by 100

Decrease 100% by 19%

100% - 19% = 81%

Then to get the multiplier, divide by 100

81% / 100 = 0.81

To decrease by 19%, multiply by 0.81

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