Help with a system of equation word problem

For a Saturday matinee, adult tickets cost $6.50 and kids under 12 pay only $4.00. If 90 tickets are sold for a total of $460, how many of the tickets were adult tickets and how many were sold to kids under 12?

Thank you:)

let a = the number of adult tickets sold
let k = the number of kid tickets sold

a + k = 90
6.50a + 4k = 460

using substitution, solve the system...you can do this...you must do this !!

euclid

[a = 40, k = 50 ]

a-# of adult tickets
k-# of kid tickets
6.50a+4k=460
a+k=90
So you can use the strategy of graphing, substitution or elimination to solve.