516,759 views
9 votes
9 votes
B) Find the length I where the area A=72 square inches and the width
w=8 inches.

User Chintan S
by
2.9k points

2 Answers

12 votes
12 votes

Answer:

The length is 9 in

Explanation:

This figure sounds like a rectangle of area 72 in^2, width 8 in and length l.

The appropriate formula is A = (l)(w) = (length)(width).

Here we know that the area is 72 in^2 and the width is 8 in.

The most efficient way to calculate the length, l, is to solve the above formula for (l) and then substitute the values for A and w:

A

(l) = ------------

w

72 in^2

Here, (l) = ------------- = 9 in

8 in

The length is 9 in

User Hardik Gondalia
by
3.1k points
13 votes
13 votes

Answer:

L = 9

Explanation:

A = L x W

72 = L x 8

72/8 = L

9 = L

User Hildensia
by
2.9k points