00:01
In this problem, we have a rectangular field.
00:03
So we'll go ahead and draw that right here.
00:06
And there's a length to it and a width to it, length and width.
00:13
And it says that there's a fence that goes around the field and it's 3 ,000 meters.
00:19
So this would be your perimeter.
00:21
Two of the lengths plus two of the widths should equal that perimeter, which is 3 ,000, 3 ,000 feet.
00:29
They also tell us that the dimensions are in relationship to each other where the length, the length is and width.
00:40
The length and width is the difference between them is 50 meters.
00:44
So the length minus the width should equal 50 meters.
00:50
So what we'll do is we will go ahead and double everything in this second equation to match up the l's in the first equation.
01:01
Let's go ahead and double all this stuff.
01:02
So 2l.
01:04
Let me do a little cursive l here, so i don't get confused with the 1, plus 2w equals 100, 100.
01:14
I doubled everything here...