# A group of 11 people are going to the movies one Saturday. Adult tickets cost $10.50 each and child tickets...

A group of 11 people are going to the movies one Saturday. Adult tickets cost $10.50 each and child tickets cost $6.75 each. If the total cost for admission to the movies is $100.50, how many children attended the movie?

## this is the number of children attending the movie

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xx xxxxxx xx children

y= xxxxxx of xxxxxx

xx can solve it xx x equation system

x+y=11 xxxxxx number xx xxxxxxx

10.50(y)+6.75(x)= 100.50 this xx the money xxxx xxx xxx sales xx xxx the xxxxxxx

x xxxx substitute x xx the second ecuation using xxx first one

xxxxxx

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115.5-10.50x+6.75x=100.50

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xxxxxxxxxx xxx then we xxxxxxxxx - signal xx both sides

3.75x= xx

x= 15/3.75

xxx

xxx we xxx calculate the xxxxxx of xxxxxx

xxxxxxxx

x= 4 children

xxx adults