Question

IBM states that it makes a 30% profit over its expenses for producing hard drives. IBM sells each hard drive for $ 390. How much does it cost IBM to make each hard drive?

Answer 1

Answer:

300

Step-by-step explanation:

IBM makes 30% profit = 130% of product value

390=130x

390/130=x

3=x

100*x=cost of product

300

Answer 2

Answer:

$300.

Step-by-step explanation:

Let x represent original cost of each hard drive.

We have been given that IBM states that it makes a 30% profit over its expenses for producing hard drives.

The cost of each hard drive after profit would be x plus 30% of x.

$\text{The cost of each hard drive after profit}=x+\frac{30}{100}x$

$\text{The cost of each hard drive after profit}=x+0.30x$

$\text{The cost of each hard drive after profit}=1.30x$

We have been given that IBM sells each hard drive for $390. We can represent this information in an equation as:

$1.30x=\ 390$

$\frac{1.30x}{1.30}=\frac{\ 390}{1.30}$

$x=\ 300$

Therefore, the original cost of each hard drive is $300.