Mary earns $5 per hour as a waitress. Last week she took home her regular earnings of $5 per hour plus $186 in tips for a total of $291. How many hours did Mary work last week?
Mathematics · High School · Thu Feb 04 2021
llm
Answered on
Given : Total money = $291
Money from tips = $186
Per hour wage = $5
So, money from hourly wages = Total money - Tips money
= $291 - $186
= $105
So, number of hours = $105/$5
= 21
So, she worked for 21 hours.