Question

When Hiro and his co-workers had lunch at a restaurant near their work, the bill was $\$90.50.$They want to leave $18\%$of the total bill as a tip. How much should the tip be?

Short answer

The amount of the tip should be$\$16.29.$

Step-by-step solution

Step 1. Given Information 

The amount of the bill is $\$90.50.$Hiro and his co-workers want to leave $18\%$ of the total bill as a tip. We have to find the amount of the tip.

Step 2. Translate into an equation 

Lett be the amount of tip.

Now, the tip is $18\%$of the total bill.

So, the equation is

$t=\left(18\%\right)\times \left(90.50\right)$

Step 3. Solve the equation 

By proceeding with the calculation further

$$\begin{gathered} t=\left(18\%\right)\times \left(90.50\right) \\ t=\left(0.18\right)\left(90.50\right) \\ t=16.29 \end{gathered}$$

Step 4. Check the answer 

So, yes$18\%\mathrm{of}\$90.50\mathrm{is}\$16.29.$

Thus, the amount of the tip should be $\$16.29.$