Question

Which of the following expressions represent 15% tip on a $20 meal? Which represents the total bill? Select ALL that apply A 1.15 • 20 B 20 + 0.15 • 20 C 15 • 20 D 15/100 • 20

Answer 1

To find the 15% of $20 you multiply 20 by 0.15 or by 15/100. The next expressions represent 15% of $20

`\begin{gathered} 20\cdot0.15 \\ \\ 20\cdot(15)/(100) \end{gathered}`

The total bill is $20 plus the tip (15% of $20). the next expression represents the total bill:

`20+0.15\cdot20`