Question

Kimngoc had lunch at her favorite restaurant. She wants to leave$15\%$of the total bill as her tip. If her bill was$\$14.40$, how much will she leave for the tip?

Short answer

If Kimngoc's bill amount is $$14.40$and She wants to leave $15$% of the total bill as her tip then she will leave$\$2.16$for the tip

Step-by-step solution

Step 1. Given information

The amount of the bill is $\$14.40$

The tip is$15\%$of the bill

Step 2. Amount of tip

Consider the amount of tip is t

The tip is $15$%of the bill

$$\begin{gathered} t=0.15\times 14.40 \\ t=2.16 \end{gathered}$$

So tip amount is$\$2.16.$

Step 3. Verification

Use present formula

$$\begin{gathered} PercentP=\frac{amount}{totalamount}\times 100 \\ P=\frac{2.16}{14.40}\times 100 \\ P=0.15\times 100 \\ P=15\% \end{gathered}$$

$\$2.16$is $15\%$of $\$14.40$

So the tip amount $\$2.16$is correct.