SOLUTION: A store owner brought 200 pens and sold them for $2.00 each. She made $40 profit after she sold them all. How much did each pen cost?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: A store owner brought 200 pens and sold them for $2.00 each. She made $40 profit after she sold them all. How much did each pen cost?      Log On


   

Question 725730: A store owner brought 200 pens and sold them for $2.00 each. She made $40 profit after she sold them all. How much did each pen cost?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
200*2-40=200x
400-40=200x
200x=360
x=360/200
x=$1.80 cost of the pens.
Proof:
200*2-40=200*1.8
400-40=360
360=360