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To calculate the sale price of an item that is on sale for 75% off it's purchase price at $20 - we need to first convert 75% to it's decimal form. After we achieve this we need to multiply its decimal form by the price of the item ($20). Finally we need to subtract the value of 75% of $20 from $20.

Step 1) Determine the decimal value of 75%

- To convert from percentage to decimal we move the decimal two places to the left

- Original: 75.0 (the same as 75%)

- 1st Place: 7.50

- 2nd Place: .750

Step 2) Multiply the decimal form by the price of the item

- .750 x 20 = 15

Step 3) Subtract the value of 75% of $20 from $20

- $20 - 15 = $5.

So If you purchased an item valued at $20 and it was 75% off, you would pay only $5.

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14y ago

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