00:01
All right, so here we're asked about a park.
00:03
We're told that the, i'm going to add a certain day, 2 ,200 people come into a park.
00:07
And we know we have kids, which i'm going to call x, adults, which i'm going to call y.
00:14
You know tickets for kids are 150.
00:18
Our adults are four.
00:21
And we know on an average day, make $5 ,050.
00:25
So now it's used substitution to solve the number of kids and adults that enter this park.
00:31
Let's hit at y.
00:32
Equals 2200 minus x, 1 .5x plus 4 times 2 ,200 x equals 50, that's 1 .5x, plus, sorry, this should be a 4, plus 2 ,800 times 4, 8800 minus 4 x equals 505 .0...