SOLUTION: Antonella bought some calculators for a total of $240. She kept one for herself and sold the rest for $300 making a profit of $5 on each calculator. How many calculators did she bu

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Antonella bought some calculators for a total of $240. She kept one for herself and sold the rest for $300 making a profit of $5 on each calculator. How many calculators did she bu      Log On


   

Question 106505: Antonella bought some calculators for a total of $240. She kept one for herself and sold the rest for $300 making a profit of $5 on each calculator. How many calculators did she buy?
an equation for this pls?? anyone??
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
let x="number bought" ... (selling price)-(cost)=(profit) ... (300/(x-1))-(240/x)=5