Question

Estimate a 15% tip on a dinner bill of $89.14 by first rounding the bill amount to the nearest ten dollars.

Answer 1

15% tip on a dinner bill of $89.14

The expression for percentage is express as :

`\text{Percentage = }\frac{Amount\text{ whose percent to be calculated}}{Total\text{ Amount}}*100`

Here total bill amount = 89.14

Percentage = 15%

`\begin{gathered} TipPercentage=\frac{Tip\text{ Amount}}{Total\text{ amount}}*100 \\ \text{ 15 =}\frac{Tip\text{ Amount}}{89.14}*100 \\ \text{Tip Amount = }\frac{\text{15}*89.14}{100} \\ \text{Tip Amount =}(1337.1)/(100) \\ \text{Tip Amount =13.371} \\ \text{Tip Amount = 13.37 Dollars} \end{gathered}`

Answer : $13.37