SOLUTION: jack usually mows his lawn in 3 hours. Marilyn can mow the same yard in 7 hours. How much time would it take for them to mow the lawn together?
Algebra ->
Polynomials-and-rational-expressions
-> SOLUTION: jack usually mows his lawn in 3 hours. Marilyn can mow the same yard in 7 hours. How much time would it take for them to mow the lawn together?
Log On
Question 315624: jack usually mows his lawn in 3 hours. Marilyn can mow the same yard in 7 hours. How much time would it take for them to mow the lawn together? Answer by scott8148(6628) (Show Source):
You can put this solution on YOUR website! in some time (t), Jack will mow t/3 of the lawn
___ during the same time, Marilyn will mow t/7 of the lawn
___ these two fractions add up to the whole lawn
