SOLUTION: If you collect 8 tickets in 30 seconds, how many minutes it takes to collect 640 tickets?

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Question 542411: If you collect 8 tickets in 30 seconds, how many minutes it takes to collect
640 tickets?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
30 seconds is 1/2 of a minute
The rate of collecting is +8%2F.5+=+16+ tickets/min
+640%2F16+ (tickets) / (tickets/min)
+640%2F16+=+40+
It takes 40 min to collect 640 tickets