Question

Felix used a scale factor of 1 inch = 2.5 feet to draw model of his backyard, as shown below. He is planning to build a fence around the yard. If the cost of the fence is $3.50 per foot, how much will it cost him to build the fence?

Length 2.75in. width 1.25in

Is my answer right? If not, what am I missing?
1.25 X 2.5= 6.875
1.25 x 2.5= 3.125
10.000
10x3.50= $35.00

Answer 1

2.75 * 2.5 = 6.875 feet
1.25 * 2.5 = 3.125 feet

That's a pretty small yard -- about the size of a long twin bed mattress.

Are you sure about these numbers?

Answer 2

The numbers are right. I just double checked.

Answer 3

I wonder why whoever made up this problem didn't use more realistic numbers.

Anyway --

the perimeter is

P = 2(6.875) + 2(3.125)

P = 13.75 + 6.25

P = 20 feet

20 * 3.5 = $70

Answer 4

It is a picture of a square. So maybe I should double the numbers since I need to account for the other 2 sides. 10x2=20
20x$3.50 = $70.00 Is this right?

Answer 5

Thank you!

Answer 6

You're welcome.