During a sale, the price of a sweater was changed from $20 to $16. what was the percent of the decrease in the price of the sweater?

( show work: ) )

$16/$20 = x%/100% (in a proportion)

Cross-multiply

1600 = 20x

Divide 1600 by 20

x = 80

80%/100%

Because you know the price decreased, you subtract 80 from 100 to find your answer

100 - 80 = 20% decrease in price

Hope this helps!

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Agc and bgd are vertical angles