Question

Tamara is creating a model of a rectangle. She has 26 inches of yellow ribbon to use for the border of the rectangle. She wants the length, l, to be 3 inches greater than the width, w. Which system of equations could Tamara use to find the dimensions of a rectangle that uses all of the ribbon?

A system of equations. 2 l plus 2 w equals 26. 3 l equals w.
A system of equations. 2 l plus 2 w = 26. l equals 3 w.
A system of equations. 2 l plus 2 w equals 26. l equals w plus 3.
A system of equations. 2 l plus 2 w equals 26. l plus 3 equals w.

Answer 1

Answer: 2l + 2w = 26 and l = w + 3.

(You can solve: 2(w+3)+2w=26 → 4w+6=26 → w=5 in, l=8 in.)