Question

Merrill received a $21 tip on a meal that cost $144. What percent of the meal costwas the tip? Enter answer as a percentage but do not include the % sign in theanswer as it knows the answer is a percentage. Round answer after it is inpercentage form to a whole percent.

Answer 1

Given: Merrill received a $21 tip on a meal that cost $144

To Determine: What percent of the meal cost was the tip?

Let the percentage tip be x. Then

`\begin{gathered} x\%of\text{ the meal cost= tip} \\ \text{meal cost=\$144} \\ \text{tip}=\text{ \$21} \end{gathered}`

x is calculated as shown below:

`\begin{gathered} (x)/(100)*144=21 \\ (144x)/(100)=21 \\ 1.44x=21 \\ x=(21)/(1.44) \\ x=14.58 \\ x\approx15 \end{gathered}`

Hence, the percentage tip to nearest percent is 15