Question

The area of a rectangle is 8w+18 Use your width expression to find the length of the rectangle when w=1.25feet show your work

Answer 1

22.4 feet

Step-by-step explanation

The area of a rectangle is the product of its length and width,

`A=l\cdot w`

We know that the area of this rectangle is 8w+18,

`8w+18=l\cdot w`

Divide both sides by w to solve for l,

`l=(8w+18)/(w)`

We have to solve this for w = 1.25 ft,

`l=(8\cdot1.25ft+18)/(1.25ft)=22.4ft`

Hence, the length of the rectangle is 22.4 feet.