Question

The length of a rectangle is 4 units shorter than half the width. If the length of the rectangle is 18 units, which equation can be used to find w, the width of the rectangle? 18 equals StartFraction w Over 2 EndFraction minus 4 18 equals 4 minus StartFraction w Over 2 EndFraction 18 minus 4 equals StartFraction w Over 2 EndFraction 18 minus StartFraction w Over 2 EndFraction equals 4

Answer 1

Answer:

$18=\frac{W}{2}-4$

18 equals StartFraction w Over 2 EndFraction minus 4

Step-by-step explanation:

Let

L ----> the length of rectangle in units

W ---> the width of rectangle in units

we know that

$L=\frac{W}{2}-4$ ----> equation A

$L=18\ units$ ----> equation B

substitute equation B in equation A

$18=\frac{W}{2}-4$

so

18 equals StartFraction w Over 2 EndFraction minus 4

Solve for W

Multiply by 2 both sides

$36=W-8$

Adds 8 both sides

$W=44\ units$