adult tickets for a play cost $8 and child tickets cost$1. if there were 22 people at a performance and the theatre collected $50 friom ticket sales, how many children attended the play?
My answer is 4 am i right?
nope, that's how many adults attended the play
if $\displaystyle a$ is the number of adults, and $\displaystyle c$ is the number of children, then this situation can be modeled by the system of equations:
$\displaystyle 8a + c = 50$ ..............(1)
$\displaystyle a + c = 22$ .................(2)