SOLUTION: If the item costs $139.99 and the item is on sale for 25% off , how much does the item cost? and how do you know ?

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Question 158184: If the item costs $139.99 and the item is on sale for 25% off , how much does the item cost? and how do you know ?
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
If the item costs $139.99 and the item is on sale for 25% off , how much does the item cost? and how do you know ?
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When you see "%" -- think "per one hundred". Therefore 25% is the same as 25/100 or .25.
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So, the original price is $139.99
"25% off" is
25/100 * 139.99 = .25 * 139.99 = $35.00 (off)
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"Cost" = "original cost" - "discount"
"Cost" = 139.99 - 35.00 = $104.99