Solve.
-Mark and Rachel both work for Smith Landscaping Company. Mark can finish a planting job in 4 hours, while it takes Rachel 2 hours to finish the same job. If Mark and Rachel will work together on the job, and the cost of
Labor is $50 per hour, what should the labor estimate be? (Round to the nearest cent, if necessary.)
A) $133.33
B) $37.50
C) $150.00
D) $66.67

Question

Quizplus · Accepted Answer

Mark's rate is 1/4 of the job per hour, and Rachel's rate is 1/2 of the job per hour. Together, their rate is 1/4 + 1/2 = 3/4 of the job per hour. Therefore, they will complete the job in 4/3 hours. The labor cost is 4/3 hours * $50/hour = $66.67.

Solve. -Mark and Rachel Both Work for Smith Landscaping Company. Mark