00:01
Philippo is going to build a rectangular sandbox for his younger brother.
00:05
And the length of the sandbox is going to be one foot longer than twice the width.
00:15
So let's start by saying twice the width plus one additional foot.
00:21
So instead of putting l here, we're going to keep this in terms of w because then it will be a little bit more manageable to solve.
00:28
We know that the perimeter of the sandbox is 29 feet.
00:34
And the first thing we want to do is figure out how we could use this information to set up an equation to find our width, and then we're going to find our width.
00:47
So we know that perimeter is the measurement around the outside of an object.
00:53
So in this case, we have, for a perimeter, we have two of the 2w plus 1 lengths, and we have two of the widths.
01:09
So we could leave it like this.
01:12
We can distribute this two inside the parentheses, so we don't have a, so we don't have a parenthesis.
01:21
So we'd have two times two, which is 4w, plus 2 times 1, which is 2...