SOLUTION: A copy machine makes 168 copies in 5 minutes and 15 seconds. How many copies does it make per minute?

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Question 716187: A copy machine makes 168 copies in 5 minutes and 15 seconds. How many copies does it make per minute?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
What part of a minute is 15 seconds?
+15%2F60+=+1%2F4+
+1%2F4+=+.25+
So, 5 minutes and 15 seconds = +5.25+ min
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The copier makes
+168+%2F+5.25+ copies/min
+168+%2F+5.25+=+32+ copies/min