Comments on: math help pls need it less then 20 mins for my Homework? http://antiquerecordplayers.info/math-help-pls-need-it-less-then-20-mins-for-my-homework.htm Wed, 08 Feb 2012 22:19:45 +0000 http://wordpress.org/?v=2.7.1 hourly 1 By: hiimkatie http://antiquerecordplayers.info/math-help-pls-need-it-less-then-20-mins-for-my-homework.htm/comment-page-1#comment-1736 hiimkatie Mon, 28 Sep 2009 00:14:11 +0000 http://antiquerecordplayers.info/math-help-pls-need-it-less-then-20-mins-for-my-homework.htm#comment-1736 78 revolutions each minute, so to find # of revolutions in 9 minutes, multiply 78 by 9 (=702 revolutions) Do the same for 45 revolutions per minute (45*9=405 revolutions) Then you find the difference of the two numbers. (702-405=297) 297 turns is the final answer 78 revolutions each minute, so to find # of revolutions in 9 minutes, multiply 78 by 9 (=702 revolutions)

Do the same for 45 revolutions per minute (45*9=405 revolutions)

Then you find the difference of the two numbers. (702-405=297)

297 turns is the final answer

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