Question

Michelle is building shelves for her room. She has a plank 137 inches long that she wants to cut into 7 shelves of equal length. The plank has jagged ends, so she will start by cutting 2 inches off each end. How long will each shelf be?

Answer 1

I think that each shelf will be 19 inches.  Because 137 divided by 7 is 19 with the remainder of 4.  Half of 4 is 2. Take 2 inches off of each end and that is the 4.  So each shelf is 19 inches.

Answer 2

19 inches.

Explanation:

We have been given that Michelle has a plank 137 inches long that she wants to cut into 7 shelves of equal length. The plank has jagged ends, so she will start by cutting 2 inches off each end.

Since she cute 2 inches from each end, so she will cut 2*2 inches or 4 inches from both ends.

The length of plank left after cutting off jagged ends would be
`137-4=133`.

Now, we will divide 133 by 7 to find length of each shelf.

`\text{Length of each shelf}=\frac{133\text{ inches}}{7}`

`\text{Length of each shelf}=19\text{ inches}`

Therefore, the length of each shelf would be 19 inches.