[tex]\frac{\text{ over time minutes }}{\text{ cost for overtime minute}} = \frac{42}{14.7}[/tex]
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:
[tex]\frac{\text{ over time minutes }}{\text{ cost for overtime minute}} = \frac{42}{14.7}[/tex]
Thus the required ratio is found
