child admission is 6.00 and adult admission is 9.20. On Friday, 168 tickets were sold for a total sales of 1244.80. How many child tickets were sold that day

Question

How many child tickets were sold at $6.00 a piece for that day

Answer 1

c + a = 168

600c + 920a = 124480

 

I think you can figure out how I came up with those equations. We need to "solve" the first equation for either c or a. Let's do c.

 

c = 168 - a

 

Now we substitute this "value" into the 2nd equation.

 

600(168 - a) + 920a = 124480

100800 - 600a + 920a = 124480

320a = 23680

a = 74

 

c = 168 - 74 = 94

 

Hope this helps!