Question

The perimeter of a rectangle picture frame is 30 inches. The length of the frame is three less than twice the width. What are the dimensions of the frame?
I know that the perimeter is 30 in., the length is 2w-3, and the width is w, but I don't know what to do after that?

Answer 1

You have a good start.

P = 2L + 2W

30 = 2(2w - 3) + 2W

30 = 6W - 6

24 = 6W

4 = W

Answer 2

Thank you so much! I needed help and since it's the weekend i couldn't ask my teacher.

Answer 3

You are very welcome. :-)

Answer 4

24 doesn't equal 30 I'm confused

Answer 5

それで答えは何ですか