Question

A quarterly telephone bill consists of $19.15 rental plus 4.7 cents for each dialled unit. Tax is added at 15%. What is the total bill for Bryndis who used 915 dialled units?

Answer 1

To calculate the total telephone bill for Bryndis, which consists of a rental fee and cost per dialled unit, we add together the rental charge and the cost of the units used, then apply a 15% tax on the total. The final amount, rounded to the nearest cent, is $71.48.

Step-by-step explanation:

To calculate Bryndis's total telephone bill for using 915 dialled units, we must first calculate the cost of the dialled units and add it to the rental cost, then apply the tax.

The cost of 915 dialled units at 4.7 cents per unit is:

915 units × $0.047/unit = $43.005

Adding the rental cost:

$43.005 + $19.15 = $62.155

Now we add a 15% tax to this amount:

Tax amount = $62.155 × 0.15 = $9.32325

The total bill, including tax, is:

$62.155 + $9.32325 = $71.47825

Therefore, Bryndis's total telephone bill, rounded to the nearest cent, would be $71.48.