Question

Your cell phone company charges $1.45 a minute plus a $45 monthly charge, how many minutes can you talk if your budget is $100?

Answer 1

38minutes approx

Explanation:

Given data

Charges per minute= $1.45

Monthly charge= $45

Let the number of minutes be x

and let the total charges for the month be y

The function for the total charge is

y= 1.45x+45

for y= 100, we want to find x

100= 1.45x+45

100-45= 1.45x

55= 1.45x

Divide both sides by 1.45 to get x

x= 55/1.45

x= 37.93

Hence the number of minutes is 38minutes approx