Question

Cellular phone service is available for $22 per month or 625 minutes. What is the monthly cost per minute? Round to the nearest tenth of a cent.

Answer 1

Given:

In $22 per month or 625 mintes

Per minute cost is:

`\begin{gathered} \because625\text{ mintes cost is 22} \\ \therefore1\text{ mnutes cost is }(22)/(625) \end{gathered}`

So per minute cost is:

`\begin{gathered} =(22)/(625) \\ =0.0352 \end{gathered}`

So per mintues cost is $0.0352