Ava buys a chair and two identical stools at a sale for $70.the price difference between the chair a

Mathematics
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Ava buys a chair and two identical stools at a sale for $70.the price difference between the chair and the two stools is $30.What is the total cost of the chair and one stool?

Apr 28th, 2015

c + 2s = 70

Since the cost difference between the chair and two stools is $30, we must assume the chair cost 50 and the two stools together cost 20 ($10 each).  So the total cost of the chair and one stool would be 30+10 = $40.

Hope that helps.

Apr 28th, 2015

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