Doug earns $10.50 per hour working at a restaurant. On
Friday he spent 1 & 3/4 hours cleaning, 2 & 1/3 hours doing
paperwork, and 1 & 5/12 hours serving customers. What were
Doug’s earnings?

Respuesta :

First, add all of the working hours.
1 [tex] \frac{3}{4} [/tex] + 2 [tex] \frac{1}{3} [/tex] + 1 [tex] \frac{5}{12} [/tex]

Since the denominators are different, make them all the same.
1 [tex] \frac{9}{12} [/tex] + 2 [tex] \frac{4}{12} [/tex] + 1 [tex] \frac{5}{12} [/tex]

Add everything together.
4 [tex] \frac{1}{12} [/tex] + 1 [tex] \frac{5}{12} [/tex] = 5 [tex] \frac{6}{12} [/tex]

Then, simplify.
5 [tex] \frac{1}{2} [/tex] or 5.5

Multiply the time by the salary.
5.5*10.5= Doug earned $57.75