# Math-Perimeter

posted by .

I just need to know how to use the perimeter formula to work this out (dont give answer)

A rectangular certicate 8 in. by 10 in. will have a frame 1 1/2 in. wide surrounding it. What is the perimeter of the outside edge of the frame?

• Math-Perimeter -

P = 2L + 2W

8 + 3 = 11

10 + 3 = 13

The outside of the frame is 11 by 13.

• Math-Perimeter -

I don't like the way the problem is stated. A 1-1/2" wide frame can never go around a certificate that is 8 x 10". Ms Sue has interpreted the problem the only way it makes sense. I think the problem should have said that a frame was placed around the certificate with a space of 1-1/2". (To make it even clearer it could have added, on each side as well as top and bottom of the certificate.)

• Math-Perimeter -

Thanks! :)

• Math-Perimeter -

A 167
p23

## Similar Questions

1. ### algebra

i need help finding the base. this is the equation i got after work it out halfway. 42/h+h+sqroot(42/h)^2+h^2=20 ft how can i find B & H. How should i go about. Thanks. Isnt the sqrt of (42/h)^2 just 42/h ?
2. ### Math

Need to know the formula for find the perimeter. Need to solve this problem. A square metal box has a perimeter of 8.32". If the sides are .04" thick what is the perimeter of the inside?
3. ### Algebra

Remember that the perimeter of a rectangle can be found with the formula . Write an inequality that will give the possible lengths and widths of his rectangular garden so that the perimeter of the garden will not be more than 60. Use …
4. ### word problem

james has a metal frame with an 8.32 inch perimeter. If the sides are 0.04 inches thick, what is the perimeter of the inside of the frame?
5. ### Math

Brandy plans to frame a picture with a sheet of construction paper. Her picture is 8 inches wide and 13 inches long. She wants the frame to extend 1 inch beyond the picture on all sides l. How wide and long should the frame be?
6. ### Algebra

The Johnsons framed a family picture to hang on the wall. The length of the frame is 22 inches and the width is 14 inches. Use the formula to find the perimeter of the frame. Show your work.