One evening Carly earned a total of $61 as a waitress at the local chili parlor. She earns $5 an hour and received $36 in tips. How many hours did she spent waitressing that evening?
She served for 5 hours.
First, let's set up an equation to represent this data by using the
Because this is a two-step equation, we'll remove any additional terms first before isolating for
To solve for