SOLUTION: Jack mows his lawn in 5hrs and Marilyn mows the same lawn in 6hrs how much time would it take if they did it together.Shelly

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Jack mows his lawn in 5hrs and Marilyn mows the same lawn in 6hrs how much time would it take if they did it together.Shelly      Log On


   

Question 363071: Jack mows his lawn in 5hrs and Marilyn mows the same lawn in 6hrs how much time would it take if they did it together.Shelly
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi, 

Let x represent the time it would take them to mow that lawn together 

1%2F5+%2B+1%2F6+=+1%2Fx   Letting "per hour" be the equalizer



Multiplying each term on both sides of the equation by 30x in order for all denominators to = 1

6x + 5x = 30

11x = 30

x = 2.727 hrs together