ENTERTAINMENT 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.
ENTERTAINMENT 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.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:ENTERTAINMENT 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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