SOLUTION: A retailer purchased 70 reams of typewriter paper for $9,730. At the end of the week, he found that there are still 13 reams left, the cost of which was $1,807. Find the cost of go

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Question 380958: A retailer purchased 70 reams of typewriter paper for $9,730. At the end of the week, he found that there are still 13 reams left, the cost of which was $1,807. Find the cost of goods sold.
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
he bought 70 for 9730 at a cost of 9730/70 = 139 apiece.

he had 13 left at a cost of 1807.

cost of goods sold is 9730 - 1807 = 7923

number of goods sold is 70 - 13 = 57

57 * 139 = 7923

number confirm each other.

7923 is your answer.