Question

A phone company offers two monthly charge plans. In Plan A, there is no monthly fee, but the customer pays 7 cents per minute of use. In Plan B, thecustomer pays a monthly fee of $6.20 and then an additional 6 cents per minute of use.For what amounts of monthly phone use will Plan A cost more than Plan B?Use m for the number of minutes of phone use in a month, and solve your inequality for m.

Answer 1

Given:

Plan A

No monthly fee, but the customer pays 7 cents per minute of use.

Let m denote the number of minutes of phones used in a month.

`\begin{gathered} 7\text{cents}=(7)/(100)\text{ dollars=0.07 dollars} \\ A=0.07m \end{gathered}`

Plan B