[Script Info]
Title:
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.01,0:00:04.49,Default,,0000,0000,0000,,Since we know that our area needs to be less than or equal to 750 square feet.
Dialogue: 0,0:00:04.49,0:00:09.04,Default,,0000,0000,0000,,We can just replace area on the left side of this inequality with the other way
Dialogue: 0,0:00:09.04,0:00:13.41,Default,,0000,0000,0000,,we know how to express it, length times width. And then, plugin those side
Dialogue: 0,0:00:13.41,0:00:18.12,Default,,0000,0000,0000,,lengths using these quantities down here. So the new length, of Grant's booth,
Dialogue: 0,0:00:18.12,0:00:22.73,Default,,0000,0000,0000,,will be 20 feet, the original 20 feet, plus x, the amount that he's adding on.
Dialogue: 0,0:00:22.73,0:00:28.06,Default,,0000,0000,0000,,So we have 20 plus x and then that's multiplying it by the new width, which will
Dialogue: 0,0:00:28.06,0:00:33.10,Default,,0000,0000,0000,,be 15 plus x. This quantity will be the new area, which we know must be less
Dialogue: 0,0:00:33.10,0:00:36.33,Default,,0000,0000,0000,,than or equal to 750. So here's our inequality.