Question

The Andersons went to dinner at the Louisiana Seafood. If their dinner cost $36.90 and they left a 15% tip for their server, how much did they pay their server for tip?

Answer 1

$4.81

Explanation

you can easily solve this by using a rule of three.

Step 1

let

the dinner cost $36.90 , this is the value of the food plus the 15% for tip

then, 36.9 is the 115 %

if

$36.9\rightarrow115$

then how much is the 15%

Let

x= $ of the tip

then

$x\rightarrow15$

Step 2

make the relation and solve for x

$\begin{gathered} \frac{36.9}{115}=\frac{x}{15} \\ \text{multiply both sides by 15} \\ \frac{36.9}{115}\cdot15=\frac{x}{15}\cdot15 \\ x=\frac{553.5}{115} \\ x=4.81 \end{gathered}$

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