Question 321330
Company A rents copiers for a monthly charge of $200 plus 10 cents per copy. Company B rents copiers for a monthly charge of $400 plus 5 cents per copy.
let thenumber of copies be x

company A
200+0.1x
Company B 
400+0.05x
..
200+0.1x= 400+0.05x
0.05x = 200
x=200/0.05
x= 20000
After 20,000 copies company A becomes costly
 What is the number of copies above which Company A's charges are the higher of the two?