00:01
So i'm filling my pool and need to get it swimmable by adding chlorine to it.
00:07
It's a 15 ,000 gallon pool and all it currently has in it is water.
00:12
It has no chlorine.
00:14
I need it to have three one hundredths of a percent chlorine.
00:19
So i'm going to have to add x amount of 100 % chlorine.
00:31
And that's going to mean i have 15 ,000.
00:39
Plus x liquid in the pool.
00:43
Now let's deal with this 3 -100s of a percent real quick before we write our equation because we've got our image right there.
00:51
So 3 -100s is 0 .03%.
00:56
And remember when i change that percent to a decimal to put it into my equation, it's going to move the decimal two more places, which is okay.
01:07
So remember i'm comparing the amount of chlorine.
01:10
I have only.
01:12
So 15 ,000 times no chlorine is zero...