Mathematics, 25.07.2019 09:30 riveg
One hundred and twenty people attended a musical. the total amount of money collected for tickets was $1515. prices were $15 for regular adult admission, $12 for children and $10 for senior citizens. twice as many children's tickets as regular adult tickets were sold. write a system of equations to find the number of children, adults, and senior citizens that attended the musical. then solve the system by using a matrix equation and the inverse matrix.
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