Question

A rectangular section of a wall in a library is 90 in. long and 72 in. wide. A librarian is hanging photos on this section of the wall. Each photo needs a space of approximately 8 in. by 10 in.
Which estimate best approximates the number of photos that can be hung on the section of the wall?

A. 80
B. 160
C. 650
D. 810

Answer 1

Answer:

A. 80

Step-by-step explanation:

Length of rectangular section of a wall = 90 inches

Width of rectangular section of a wall = 72 inches

Area of rectangular section of a wall = $Length \times width$

                                                             = $90 \times 72$

                                                             = $6480 inches^2$

Each photo needs a space of approximately 8 in. by 10 in.

So, area of each photo = $Length \times width$

                                       = $8 \times 10$

                                       = $80 inches^2$

Now he number of photos that can be hung on the section of the wall:

$\frac{\text{Area of rectangular section of wall}}{\text{Area of each photo}}$

$\frac{6480}{80}$

$81$

So, 80  estimate best approximates the number of photos that can be hung on the section of the wall.

Answer 2

I think its 80 sorry if Im wrong!!!! Please let me know if I was!!