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 $301. Which equation can be used to find how many hours, h, Mary worked last week?

A.

$301 = $5h + $186

B.

$301 = $186h + $5

C.

$301 = $186h - $5

D.

$301 = $5h - $186

A

Step-by-step explanation:

Let's set hours as h.

We know that she earns 5 dollars an hour. If, for example, she worked 2 hours, she would have earned 2*5=10 dollars. This is 5h.

Next, we know that she got 186 dollars in tips. Tips means that she earned extra money, so therefore, the equation is 5h+186, or A