To solve this problem, we need to determine the value of x, which represents the cost of each pair of RAM.
Let's break down the information given:
Number of graphics cards sold: 10
Cost per graphics card: $600
Number of hard drives sold: 14
Cost per hard drive: $80
Number of CPUs sold: 8
Cost per CPU: $200
Number of pairs of RAM sold: 4
Cost per pair of RAM: $x
Total earnings for the week: $8960
We can set up the equation as follows:
(Number of graphics cards sold * Cost per graphics card) + (Number of hard drives sold * Cost per hard drive) + (Number of CPUs sold * Cost per CPU) + (Number of pairs of RAM sold * Cost per pair of RAM) = Total earnings for the week
(10 * $600) + (14 * $80) + (8 * $200) + (4 * $x) = $8960
Let's simplify and solve for x:
$6000 + $1120 + $1600 + $4x = $8960
$8720 + $4x = $8960
To isolate x, we subtract $8720 from both sides of the equation:
$8720 - $8720 + $4x = $8960 - $8720
$4x = $240
To solve for x, we divide both sides of the equation by 4:
x = $240 / 4
x = $60
The value of x is $60.
#### 60
The answer is: 60
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
A hardware store sold 10 graphics cards, 14 hard drives, 8 CPUs, and 4 pairs of RAM in one week. The graphics cards cost $600 each, hard drives cost $80 each, CPUs cost $200 each, and RAM cost $x for each pair. The store earned 8960 money this week.

### Answer:
