SOLUTION: a dvd player originally cost $150. It is on sale for $72.50. what is the percent of the discount, rounded to the nearest tenth of the percent?

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Question 237676: a dvd player originally cost $150. It is on sale for $72.50. what is the percent of the discount, rounded to the nearest tenth of the percent?
Answer by nerdybill(6958) About Me  (Show Source):
You can put this solution on YOUR website!
a dvd player originally cost $150. It is on sale for $72.50. what is the percent of the discount, rounded to the nearest tenth of the percent?
.
Let x = the discount
then
150 - 150x = 72.50
150(1- x) = 72.50
1-x = 0.48333
-x = -0.5167
x = 0.5167
.
Multiply by 100 to get the percentage:
x = 0.5167*100
x = 51.7%