Solve the problem.
-The Epson Stylus 850 can print Helen's class project in 12 minutes. The Epson Stylus 500 can print the project in 36 minutes. If the two printers work together, how long would they take to print out the project?
A) $\frac{1}{9}$ of a minute
B) 72 minutes
C) 8 minutes
D) 9 minutes

Question

Quizplus · Accepted Answer

The rate of the Epson Stylus 850 is 1/12 of the project per minute, and the rate of the Epson Stylus 500 is 1/36 of the project per minute. Together, their combined rate is 1/12 + 1/36 = 1/9 of the project per minute. Therefore, they would take 9 minutes to complete the project together.

Solve the Problem 19\frac{1}{9}91​ Of a Minute B) 72 Minutes C) 8 Minutes D)

Solve the Problem $\frac{1}{9}$ Of a Minute
B) 72 Minutes
C) 8 Minutes
D)