SOLUTION: I've been stuck on this problem: The Middle School sold booklets of ride tickets for its Fall Carnival. Twenty times as many 8-ticket booklets as 20-ticket booklets were sold. A to

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Question 129581: I've been stuck on this problem: The Middle School sold booklets of ride tickets for its Fall Carnival. Twenty times as many 8-ticket booklets as 20-ticket booklets were sold. A total of 3600 tickets were sold. How many 20-ticket booklets were sold?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let j= number of 8-ticket booklets
Let k= number of 20-ticket booklets
j+=+20k
8j+%2B+20k+=+3600
8%2820k%29+%2B+20k+=+3600
160k+%2B+20k+=+3600
180k+=+3600
k+=+20
j+=+20%2A20
j+=+400
Twenty 20-ticket booklets were sold
check:
8j+%2B+20k+=+3600
8%2A400+%2B+20%2A20+=+3600
3200+%2B+400+=+3600
3600+=+3600
OK