Question

Jim pays $75 per month for a cell phone plan plus $0.30 per minuet beyond the first 1000 minuets. Write an equation for the cost(y) based on the number of minuets(x) after the first 1000

Answer 1

Let x be the number of minutes Jim used
105.60 = 75+0.30(x−1000)
105.60=75+0.30x−300
105.60=0.30x−225
1056=3x−2250
1056+2250=3x
3306=3x
x=1102