Question

Find the number of pens they need to sell to break even (when R = C).

Answer 1

R=10x

C=2x+7000

P=R-C

a)

Substitute R and C into the equation for P:

P=10x - (2x+7000)

Now substitute 1000 for x and solve for P which is the company's profit if they sell 1000 pens.

b)

Set R equal to C

R=C

Plug in R=10x and C=2x+7000

10x=2x+7000

Solve for x which will be the amount of pens required to be sold to break even.

Explanation:

I had to think through.

I hope this helps you :)