Question

The plans for a shed call for a rectangular floor with a perimeter of 344 ft. The length is three times the width. What is the length and width?

Answer 1

`"Width"=43" feet"`
`"Length"=129" feet"`

Explanation:

`"Let "l="length and let "w="width"`
`"Perimeter"=2l+2w`

`344=2l+2w`

`l=3w`

`344=2(3w)+2w`
`344=6w+2w`
`8w=344`
`w=43`

`l=3(43)`
`l=129`