Question

Cellular phone services is available for nine dollars per month for 1140 minutes what is the monthly cost per minute round to the nearest 10th of a cent?

Answer 1

Convert $9 to cents

`\$9*100=900\text{ cents}`

Divide it by 1140 minutes

`900/1140=0.78947`

Rounding to tenth of a cent, the cost per minute is 0.8 cents per minute.