91Ó°ÊÓ

In this type of question, use the concept of making the linear equation & do various mathematical operation.

Since,

It is given that, the tip on Wednesday is =25

The tip on Friday is =30.76 .

Number of Hours on Wednesday is given =5 hours.

Number of Hours on Friday is given =3 hours.

Let the hourly wage of the friend be x.

Now, On Wednesday, the friend works 5 hours and gets a tip of25 . So the total amount earned on Wednesday is, the equation be:$\$5x+25$

Again, On Friday, the friend works 3 hours and gets a tip of$\$30.76$ . So the total amount earned on Friday is, the equation be:$\$3x+30.76$ .

The equation should be make in the form of below lines:

It is given that the amount earned on Wednesday = amount earned on Friday.

Now, the equation be like that$\$5x+25=\$3x+30.76$

Simply take the variable and constant in separate side and then do mathematical operations.

$\begin{array}{l}\$5x+25=\$3x+30.76\\ 5x−3x=30.76−25\\ 2x=5.76\\ x=\frac{5.76}{2}\\ x=\$2.88\end{array}$

The hourly wage is $\$2.88$.