ALERS INBOX MyPie- -Review? Dictionary Calailatool Assignments Calendar Amy boug

Question

ALERS INBOX MyPie- -Review? Dictionary Calailatool Assignments Calendar Amy bought a desktop computer and a laptop computer. Before finance charges, the laptop cost S250 less than the desktop. She paid for the computers using two different financing plans. For the desktop the interestrate was 7% per year, and for the laptop it was 8% per year. The total finance charges for one year were $325. How much did each computer cost before finance charges? Desktop: $ Laptop: s Clear Undo Hel Next >> Explain

Explanation / Answer

Before finance charges, the laptop cost $250 less than the desktop.
Let desktop cost be x
Then laptop cost is x-250

For the desktop the interest rate was 7% per year, and for the laptop it was 8% per year.
Interest on desktop = 0.07x
Interest on laptop = 0.08(x-250)=0.08x-20

The total finance charges for one year were $325

By the problem

0.07x+0.08x-20=325

0.15x=345

15x=34500

x=2300

Therefore the computer cost $2300 and the laptop cost $(2300-250)=$2050

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