Using a new lawn mower, Abby can mow the lawn in 2 hours. Her sister Carla used an older lawn mower and takes 3 hours to mow the

Question

marta [7]

3 years ago

7

Using a new lawn mower, Abby can mow the lawn in 2 hours. Her sister Carla used an older lawn mower and takes 3 hours to mow the

same lawn. How long will it take them if they work together?

Mathematics

1 answer:

inn [45] · Answer 1 · 2022-07-31T21:07:29+03:00

inn [45]3 years ago

8 0

So rates are the lower number of a fraction.

So it would be: $\frac{x}{3} + \frac{x}{2} = 1$ Then cross muitply.

2x + 3x = 6

5x=6

x= $\frac{6}{5} hours$