document.write( "Question 283360: How far will a wheel with radius 5/π roll in two revolutions?\r
\n" ); document.write( "\n" ); document.write( "a) 25/π units b) 10 units c) 20 units d) none of these
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Algebra.Com's Answer #205716 by Theo(13342)\"\" \"About 
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circumference = 2*pi*r\r
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\n" ); document.write( "\n" ); document.write( "circumference = 1 revolution\r
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\n" ); document.write( "\n" ); document.write( "1 revolution = 2*pi*r\r
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\n" ); document.write( "\n" ); document.write( "r = 5/pi\r
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\n" ); document.write( "\n" ); document.write( "1 revolution = 2*pi*5/pi = 2*5 = 10\r
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\n" ); document.write( "\n" ); document.write( "2 revolutions = 20\r
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\n" ); document.write( "\n" ); document.write( "Answer is selection c.\r
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