SOLUTION: After a 20% decrease in price,the cost of all item is D dollars.what is the original price.?

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Question 1043161: After a 20% decrease in price,the cost of all item is D dollars.what is the original price.?
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
Let n be the original price. Then:
n-.2n=d
.8n=d
n=d/.8=1.25D. The original price is 1.25D !!!!