SOLUTION: Mark and Rachel both work for Smith Landscaping Co. Mark can finish a planting job in 2 hours, while Rachel takes 3 hours to finish the same job. If Mark and Rachel work together o

Algebra ->  Finance -> SOLUTION: Mark and Rachel both work for Smith Landscaping Co. Mark can finish a planting job in 2 hours, while Rachel takes 3 hours to finish the same job. If Mark and Rachel work together o      Log On


   

Question 1153687: Mark and Rachel both work for Smith Landscaping Co. Mark can finish a planting job in 2 hours, while Rachel takes 3 hours to finish the same job. If Mark and Rachel work together on the job, how long will it take them to finish.
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Simplify and compute %281%2F%281%2F2%2B1%2F3%29%29hours.



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Mark's rate, 1%2F2 jobs per hours
Rachel's rate, 1%2F3 jobs per hours
Their combined rate working together, 1%2F2%2B1%2F3 jobs per hours-------The reciprocal of this will be how many HOURS per one job.