Question

Mr.Webster is buying carpet for an exercise room in his basement. The room will have an area of 230 square feet. The width of the room is 12 1/2 feet.What is the length?

Answer 1

The lenght is 18 2/5 feet

Answer 2

Length =
`18(2)/(5)` feet

Explanation:

Simplify the fraction of the width:

`12(1)/(2)=(25)/(2)`

Using the formula for Area:

`A=l*w\\l=(A)/(w)`

Substituting the known values:

`l=(230)/((25)/(2))\\l=230*(2)/(25)\\l=(460)/(25)\\l=(92)/(5)\\l=18(2)/(5)`