Question

Your bill at PF chang’s was 58.74. You are leaving a 20 percent tip how much is the tip ?

Answer 1

11.74 because 58.74 divides by 100 = 0.5874, then 0.5874(20) = approximately $11.74

Answer 2

How to calculate percentages?

We remember that for calculating percentages, we take the percent as a fraction. And that it becomes a multiplication between the fraction and the number. For example, 15% represents:

`15\%=(15)/(100)=(3)/(20)`

When we simplify the last fraction.

Now, in our exercise

In this exercise, we have to calculate the tip, which is the 20% of the total bill. As we see before, we just have to calculate the fraction and make the multiplication between that fraction and the bill value (58.74).

`\begin{gathered} 20\%\text{ of 58.74}=(20)/(100)\cdot58.74 \\ =(1)/(5)\cdot58.74 \\ =(58.74)/(5) \\ =11.748 \end{gathered}`

This means that the tip will be $11.748.