# SOLUTION: The selling price of a calculator is \$115. If the mark-up is 25% of the dealer's cost, what is the dealer's cost?

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 Question 492028: The selling price of a calculator is \$115. If the mark-up is 25% of the dealer's cost, what is the dealer's cost?Answer by nerdybill(7090)   (Show Source): You can put this solution on YOUR website!The selling price of a calculator is \$115. If the mark-up is 25% of the dealer's cost, what is the dealer's cost? Let d = dealer's cost then d + .25d = 115 d(1+.15) = 115 d(1.15) = 115 d = \$100