00:01
So it's called the number of child tickets c and the number of adult tickets a.
00:06
We know we have a total of 157 tickets.
00:11
So a total is going to mean that's the sum of the both types of tickets.
00:15
So our child tickets plus are adult tickets.
00:18
We're also told we have a dollar total of $1 ,104 .70.
00:25
So since this is a dollar total, we have to take the cost of each ticket multiplied by, the number of tickets sold.
00:33
So we have $5 .10 times the amount of child tickets sold, plus the cost of the adult tickets, 8 .3 times the number of adult tickets sold, which is a.
00:47
So now we have a system of equations, two equations and two unknowns that we want to solve for.
00:52
And we want to find the number of adult tickets sold, so solving for a.
00:57
So we can start by solving this left equation for c...