Question

Solve for the width in the formula for the area of a rectangle.

formulas
1. w = A - L
2. w = AL
3. w = L/A
4. w = A/L

Use the rewritten formula to find the width of a rectangle with an area of 42 square inches and a length of 16.8 inches.
1. 2.5 inches
2. 4.2 inches
3. 12.6 inches
4. 25.2 inches

Answer 1

A = L * W
A / L = W <==

when A = 42 and W = 16.8
A / L = W
42/16.8 = W
2.5 = W <=== width = 2.5 inches

Answer 2

W=A/L................

2.5 inches...........