The perimeter, P, of a rectangle is the distance around it, and can be found by solving the formula P = 2l + 2w, where l is the length and w is the width. What is the length of a rectangle whose perimeter is 30 inches and whose width is 3 inches?
A) 15 inches
B) 12 inches
C) 24 inches
D) 10 inches

Question

Quizplus · Accepted Answer

To find the length, use the formula P = 2l + 2w. Substitute P = 30 and w = 3 into the equation: 30 = 2l + 2(3). Simplify to get 30 = 2l + 6. Subtract 6 from both sides to get 24 = 2l. Divide by 2 to find l = 12 inches.

The Perimeter, P, of a Rectangle Is the Distance Around