Question

Kayla went over the allotted cell phone minutes this month by 42 minutes. Her regular bill is $39.95, but this month is was $54.65. Which ratio compares her overtime minutes to the cost of those minutes?

Answer 1

$\frac{\text{ over time minutes }}{\text{ cost for overtime minute}} = \frac{42}{14.7}$

The ratio of overtime minutes to the cost of those minutes is 42 : 14.7

Solution:

Kayla went over the allotted cell phone minutes this month by 42 minutes

Therefore,

over time minutes = 42 minutes

Her regular bill is $39.95, but this month is was $54.65

Regular bill = $ 39.95

This month bill = $ 54.65

Therefore, cost for overtime minute is given by:

cost for overtime minute = This month bill - regular bill

cost for overtime minute = $ 54.65 - $ 39.95

cost for overtime minute = 14.7

Thus ratio of over time minutes to cost of those minutes is given by:

$\frac{\text{ over time minutes }}{\text{ cost for overtime minute}} = \frac{42}{14.7}$

Thus the required ratio is found