Question

A roll of gasket material is 18 in wide. What length is needed to obtain 20 sq ft of the material? (Careful: The numbers are not expressed in compatible units.)

Answer 1

Given

A roll of gasket material is 18 in wide.

To find: What length is needed to obtain 20 sq ft of the​ material?

Step-by-step explanation:

It is given that,

A roll of gasket material is 18 in wide.

Also, the area of the material is 20 sq ft.

Since

`1\text{ }sq.ft=144in^2`

Then,

`\begin{gathered} Area\text{ }of\text{ }the\text{ }gasket\text{ }material=20\text{ }sq.ft \\ =20*144\text{ }in^2 \\ =2880\text{ }in^2 \end{gathered}`

Therefore,

`\begin{gathered} Area=2880\text{ }in^2 \\ l* w=2880 \\ l*18=2880 \\ l=(2880)/(18) \\ l=160\text{ }in \end{gathered}`

Hence, the length of the gasket material is 160 in.