word problem!!!!

[clare22]

i really need help ive been stuck on this problem forever!!


A total of 432 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was two times the number of adult tickets sold . How many adult tickets were sold?

 

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[abc0003]

Word Problem

Let s be be the number of student tickets sold.
Let a be the number of adult tickets sold.
Since the sum of these two ticket are 432, so we have an equation s+a=432 (equation #1)
The number of student tickets are twice the number of adult tickets, so s = 2a (equation # 2)
Substitute s=2a into the equation #1, we have 2a+a=432
3a= 432
a= 432/3
a= 144
s= 2a= 2*144= 288
So 144 adult tickets and 288 student tickets.