00:01
So in this problem, what we're looking at here is the cost in thousands of dollars to remove a certain percent of pollutant.
00:07
So the first thing we're going to do is do some evaluating.
00:09
We're going to figure out some costs removing certain levels of pollutants.
00:14
So the first thing is, if i plug in 0%, zero percent, zero goes in for the x's, i'm going to get zero.
00:20
So if i'm not going to remove anything, it's not going to cost me anything.
00:25
If i want to remove 50 percent of the pollutants, 6 .2.
00:31
$6 ,000 ,000, $6 ,250 .50.
00:42
To remove 80 % of the pollutants, you're going to end up with $23 .636.
00:51
Right.
00:53
So what we're looking at there is we're looking at $23 ,636.
01:00
If i want to remove 90 % of the pollutants, it's going to be 48 .75, which is equivalent to $48 ,750...