document.write( "Question 1208414: How many revolutions will a circular disk with a diameter of 4 feet have completed after it has rolled 20 feet? \r
\n" ); document.write( "\n" ); document.write( "Let me see.\r
\n" ); document.write( "\n" ); document.write( "I am tempted to use C = pi•d times the number of times the disk has rolled.\r
\n" ); document.write( "\n" ); document.write( "C = pi(diameter)(number of feet the disk has rolled).\r
\n" ); document.write( "\n" ); document.write( "C = pi(4)(20)\r
\n" ); document.write( "\n" ); document.write( "Is my setup correct? \n" ); document.write( "

Algebra.Com's Answer #846812 by ikleyn(52869) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "To be honest, I do not see any setup here, since this writing does not contain a complete equation.\r
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\n" ); document.write( "\n" ); document.write( "The way for reasoning and for making setup is as follows.\r
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document.write( "    Let n be the number of revolutions (same as rotations).\r\n" );
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document.write( "    One rotation provides  =  feet move forward.\r\n" );
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document.write( "    The setup equation is\r\n" );
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document.write( "         = 20  feet.\r\n" );
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document.write( "     The solution is  n =  =  = 1.595727... rotations.\r\n" );
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