Question

The perimeter of a rectangle is 48 inches. The length is three times the width. Find the dimensions of the rectangle thanks.

Answer 1

width is 6 length is 18

Answer 2

3w+3w+w+w=48

8w=48
w=6

Answer 3

The equation for the perimeter is 2l+2w=48
As the length is three times the width: l = 3w.

We can't solve for two variables, but we have an equation for l which we can subtitute in:

\(2(3w)+2w=48\)
\(6w+2w=48\)
\(8w=48\)
\(w=6\)

Then substitute w in l=3w to find length:
\(l=3(6)=18\)

Thus width is 6 inches and length 18.

Answer 4

ya what he said

Answer 5

Thanks