Respuesta :

Answer:

Michael worked for 5.5 hours.

Step-by-step explanation:

Total money earned = $74.25  

Money Earned in tips = $38.50

Cost per hour = $6.50

Let number of hours he worked be x.

We need to find total hours he worked.

It can be find by;

Total money he earned is equal to Cost per hour multiplied by number of hours he worked plus money earned in tips.

Hence;

Cost per hour × number of hours he worked + Money Earned in tips = Total money earned

Computing in mathematical form we get;

[tex]6.5x+38.50 = 74.25\\6.5x = 74.25-38.50\\6.5x=35.75\\\\x= \frac{35.75}{6.5} =5.5[/tex]

Hence Micheal worked for 5.5 hours.