Answer: $225
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Explanation:
x = original price
If she saves 20%, then she still pays the remaining 80% which then converts to the decimal form 0.80
The expression 0.80x represents the new price, or sale price, of the dress. We're told this price is $180
Equate the two expressions and solve for x
0.80x = 180
x = 180/0.80
x = 225
The original price is $225
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Checking the answer:
20% of 225 = 0.20*225 = 45
She saves $45
225 - 45 = 180
This confirms the answer.
