At the movie theatre, child admission is $6.50 and adult admission is $9.80 . On Monday, 173 tickets were sold for a total sales of $1368.70 . How many ch

Question

 I need number of child tickets sold

Answer 1

C + A = 173

 

6.50* C + 9.80*A = 1368.70 

 

Solves the first equation for C and multiplies the second equation by 10 to clear the decimals:

C = 173 - A

65C + 98A = 13687 

 

 

65 ( 173 - A ) + 98A = 13687

 

11245 - 65A + 98A = 13687

 

33A + 11245 = 13687

 

33A = 13687 - 11245

 

33A = 2442

 

 

A = 74

 

C = 99