SOLUTION: The price of a computer fell 20% this year. If the computer now cost $750, how much did it cost last year?

Algebra ->  Finance -> SOLUTION: The price of a computer fell 20% this year. If the computer now cost $750, how much did it cost last year?       Log On


   

Question 1078046: The price of a computer fell 20% this year. If the computer now cost $750, how much did it cost last year?
Found 2 solutions by Fombitz, MathLover1:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
P%281-20%2F100%29=750
P%281-0.2%29=750
P%280.8%29=750
P=750%2F0.8
Solve for P.

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

let's the price of last year be x
if the price of a computer fell 20%=20%2F100=0.20 this year, and if the computer now cost $750, than
x-0.20x=750
0.8x=750
x=750%2F0.80
x=75000%2F80
x=937.5
so, last year it cost 937.5