Asked by Samantha
A book has been discounted 20% and now sells for $15. How much did it cost before the discount?
Answers
Answered by
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 ?
so .8x=15
x = 15/.8
= 18.75
test the answer by taking 20% of that, and subtracting it.
Do we get $15 ?
Answered by
Samantha
That is one of the choices so my guess is that that is correct. Thank you! =]
Answered by
Anonymous
8=1/4x-6
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.