SOLUTION: Problem Page Sam bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $400 more than the desktop. He paid for the computers using two different

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Question 1110868: Problem Page Sam bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $400 more than the desktop. He paid for the computers using two different financing plans. For the desktop the interest rate was 7% per year, and for the laptop it was 8% per year. The total finance charges for one year were 275 . How much did each computer cost before finance charges?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
Let d be the desktop computer, and d+400 be the laptop. Then:
.07d+.08(d+400)=275
Solve for d
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