Gretchen is building a picture frame. The frame around the picture is k inches longer than it is wide as shown in the picture. The shaded border is 2 inches wide and has an area of (a) Write and solve an equation that will enable you to find out the value of k.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

if x = 1, then the answer is 3.5

step-by-step :

do your own work and don"t cheat.

step-by-step explanation: