Question

A phone company charges a flat rate of $15 to make phone calls for a month.they charge $0.10 per minute for each call made.if the want to make at least $60 from one customer,how many minutes do they have to talk

Answer 1

600 Minutes

Explanation:

60 ÷ 0.10 = 600

Answer 2

450 minutes

Explanation:

15 + 0.1x = 60

15 - 15 + 0.1x = 60 - 15

0.1x = 45

`(0.1x)/(0.1) = (45)/(0.1)`

x = 450