document.write( "Question 1000904: Peter can cycle twice as fast as Amy. Find
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\n" ); document.write( "i Amy’s cycling speed to Peter’s speed
\n" ); document.write( "ii Peter’s cycling speed to Amy’s speed\r
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Algebra.Com's Answer #618215 by Theo(13342)\"\" \"About 
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x = amy's cycling speed.
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\n" ); document.write( "\n" ); document.write( "peter cycles twice as fast as amy.\r
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\n" ); document.write( "\n" ); document.write( "y = 2x\r
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\n" ); document.write( "\n" ); document.write( "solve for x to get x = 1/2 * y\r
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\n" ); document.write( "\n" ); document.write( "amy cycles half as far as peter.\r
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\n" ); document.write( "\n" ); document.write( "we do not know the cycling speed of either peter or amy.\r
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\n" ); document.write( "\n" ); document.write( "we only know that peters cycles twice as fast as amy and that amy cycles half as fast as peter.\r
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\n" ); document.write( "\n" ); document.write( "if we knew peters's cycling speed, we could find amy's.\r
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\n" ); document.write( "\n" ); document.write( "if we knew amy's cycling speed, we could find peter's.\r
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\n" ); document.write( "\n" ); document.write( "we only know that, whatever amy's speed is, peter's is twice as fast.\r
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\n" ); document.write( "\n" ); document.write( "we only know that, whatever peter's speed is, amy's is half as fast.\r
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