Question

Henry uses 3 feet of wood to make 3/4 of a birdhouse. If he has 12 feet of wood how many birdhouses can he make?

Answer 1

He can make 3 birdhouses if he has 12 feet of wood.

Explanation:

Given:

Henry uses 3 feet of wood to make 3/4 of a birdhouse.

If he has 12 feet of wood.

Now, to find the birdhouses he can make.

So, to get the number of birdhouses we use unitary method:

Henry uses 3 feet of wood to make
`(3)/(4)` of a birdhouse.

So, in 1 feet of wood to make =
`((3)/(4))/(3)` =
`(3)/(12)`

Thus, in 12 feet of wood =
`(3)/(12) * 12` =
`(36)/(12)=3.`

Therefore, he can make 3 birdhouses if he has 12 feet of wood.