Farmer fernanda wants to put a fence around her rectangle field . the length of the field is 40 feet less than 3 times the width. if she has 320 feet of fencing, what are the dimensions of the field?

Length: 110 feet

Width: 50 feet

Step-by-step explanation:

we know that

The perimeter of rectangle is equal to

where

L is the length of rectangle

W is the width of rectangle

we have

so

----> equation A

----> equation B

Solve the system by substitution

substitute equation B in equation A

solve for W

Find the value of L

therefore

The dimensions of the field are

Length: 110 feet

Width: 50 feet

The answer is 1/8

because 1/2 divided by 4/1

=1/2 times 1/4

=1/8