Question 132933
5A+2C=129
2A+6C=107.50 NOW MULTIPLY THE FIRST EQUATION BY -3 & ADD THEM.
-15A-6C=-387
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-13A=-279.5
A=-279.5/-13
A=$21.50 COST OF THE ADULT TICKET.
5*21.5+2C=129
107.5+2C=129
2C=129-107.5
2C=21.5
C=21.5/2
C=$10.75 COST OF THE CHILDREN'S TICKET.
PROOF:
2*21.50+6*10.75=107.5
43+64.5=107.50
107.50=107.50