Question

jack usually mows his lawn in 6 hrs. mary mows the same yard in 3 hrs. how much time would it take for them to mow the lawn together.

Answer 1

2

Answer 2

see thats what we thought but in thee book is tries to set up some big equation

Answer 3

the equation will be,

\[\frac16+\frac13 = \frac 1x\]

Answer 4

but it would be 1/2 not 2 right?

Answer 5

1/2 = 1/x

invert both will give u 2.