Answer:
$1150 amount of the meals that Sarah served.
Step-by-step explanation:
As given
Sarah works as a waiter.
She earns 15% in tips on meals served.
This weekend, Sarah earned $172.50 in all.
Let us assume that the x dollar amount of the meals that Sarah served .
15% is written in the decimal form.
[tex]= \frac{15}{100}[/tex]
= 0.15
Than the equation becomes
x × 0.15 = 172.50
Solving the above equation
[tex]x = \frac{172.50}{0.15}[/tex]
x = $1150
Therefore $1150 amount of the meals that Sarah served.
