SOLUTION: If 72 people attend a concert and tickets for adults cost $3.5 while tickets for children cost $1.5 and total receipts for the concert was $192, how many of each went to the concer

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Question 1206576: If 72 people attend a concert and tickets for adults cost $3.5 while tickets for children cost $1.5 and total receipts for the concert was $192, how many of each went to the concert?
adults?
children?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
y adults
72-y children

3.5y%2B1.5%2872-y%29=192

3.5y-1.5y%2B1.5%2A72=192
%283.5-1.5%29y=192-1.5%2A72
y=%28192-1.5%2A72%29%2F%283.5-1.5%29
highlight%28y=42%29adults
and
highlight%2830%29children