SOLUTION: Nicole bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $ 300 more than the desktop. She paid for the computers using two different finan

Question 1161167: Nicole bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $
300 more than the desktop. She paid for the computers using two different financing plans. For the desktop, the interest rate was
6% per year, and for the laptop it was
7% per year. The total finance charges for one year were $398
. How much did each computer cost before the finance charges?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
interest=prt
for desktop it is p*.06*1=.06p
for laptop it is (p+300)*.07*1=.07p+21
Those two add to $398
so .13p+21=398
.13p=377
p=$2900 for desktop and that is $174 interest
=$3200 for laptop and that is $224 interest
RELATED QUESTIONS
Ivanna bought a desktop computer and a laptop computer. Before finance charges, the... (answered by mananth)

Salma bought a desktop computer and a laptop computer. Before finance charges, the laptop (answered by ikleyn)

Latoya bought a desktop computer and a laptop computer. Before finance charges, the... (answered by stanbon,MathTherapy)

Deandre bought a desktop computer and a laptop computer. Before finance charges, the... (answered by kasperk)

Ryan bought a desktop computer and a laptop computer. Before finance charges, the laptop... (answered by ikleyn)

Martina bought a desktop computer and a laptop computer. Before finance charges, the... (answered by jorel1380)

Need full answer asap please, thank you so much! Linda bought a desktop computer and a (answered by Theo)

Rafael bought a desktop computer and a laptop computer. Before finance charges, the... (answered by stanbon)

Ravi bought a desktop computer and a laptop computer. Before finance charges, the laptop... (answered by math_helper)