Question

On Reese's most recent phone bill, 80% of the minutes she used were from calling her mother. If she talked to her mother for 348 minutes, how many total minutes did she use?

Answer 1

435

Explanation:

Answer 2

Number of minutes Reese talked with her mother = 348 minutes

The time she talked with her mother is :-

= 80% of the total minutes she used .

Let the total number of minutes she talked be x .

This can be written as :-

`(80)/(100) * x = 348`

`x = 348 / (80)/(100)`

`x = 348 / (8)/(10)`

`x = (348)/(1) * (10)/(8)`

`x = (3480)/(8)`

`x = 435 \: minutes`

Therefore , Reese uses a total of 435 minutes .