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A book has been discounted 20% and now sells for $15. How much did it cost before the discount?
16 years ago

Answers

Reiny
After we took off 20%, doesn't the $15 represent 80% of what it used to cost?
so .8x=15
x = 15/.8
= 18.75

test the answer by taking 20% of that, and subtracting it.
Do we get $15 ?
16 years ago
Samantha
That is one of the choices so my guess is that that is correct. Thank you! =]
16 years ago
Anonymous
8=1/4x-6
14 years ago

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