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To find the percentage of a whole part, the percentage must 1st be changed into a decimal and then multiplied by the whole part. In this case we have:
25 percent, it is changed to (.25).
25% of 20 dollars is .25(20.00) = $5.00
Now subtract the 5 dollars from the 20 to find the purchase price.
$20.00-$5.00= $15.00 is the purchase price.
Method 2.
In this case, it might be easier, however, if you just understand that 25% is a 1/4 or one quarter.
So a quarter of 20 is 5 since 5x4 =20
We can say write away, without a calculator, that the answer is $15. ( since 20-5 is 15)
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What is 25 percent off of 36 dollars?
25 percent off of 36 dollars would be 9 dollars off.
How much is 25 percent off 18 dollars?
25 percent of 18 dollars is 18*25/100 = 4.50 dollars So 25% off of 18 dollars is 13.50 dollars
What is 25 percent off 25 dollars?
Subtracting 25 percent from 25 dollars gives 25 x (1 - (25/100)) = $18.75
What is 25 percent off of 48 dollars?
12 dollars
What is 25 percent off 12 dollars?
9 dollars.
