2008 AMC 12A Problems/Problem 6
- The following problem is from both the 2008 AMC 12A #6 and 2008 AMC 10A #8, so both problems redirect to this page.
Contents
Problem
Heather compares the price of a new computer at two different stores. Store 
offers 
off the sticker price followed by a 
90
B
25\%
$
by buying the computer at store instead of store 
. What is the sticker price of the computer, in dollars?
Solution
Solution 1
Let the sticker price be 
.
The price of the computer is 
at store , and 
at store .
Heather saves 15
A
0.85x-90+15=0.75x$.
Solving, we find$ (Error compiling LaTeX. Unknown error_msg)x=750
\mathrm{(A)}$.
===Solution 2===
The$ (Error compiling LaTeX. Unknown error_msg)\textdollar 90
A
\textdollar 15
10\%
B$.
Thus the$ (Error compiling LaTeX. Unknown error_msg)10\%
\textdollar 90
\textdollar 15$$ (Error compiling LaTeX. Unknown error_msg)=$$ (Error compiling LaTeX. Unknown error_msg)\textdollar 75
\textdollar 750$.
See Also
| 2008 AMC 12A (Problems • Answer Key • Resources) | |
| Preceded by Problem 5 |
Followed by Problem 7 |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | |
| All AMC 12 Problems and Solutions | |
| 2008 AMC 10A (Problems • Answer Key • Resources) | ||
| Preceded by Problem 7 |
Followed by Problem 9 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
| All AMC 10 Problems and Solutions | ||
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
