document.write( "Question 1197998: 8. If y varies inversely as x. If y = 15 when x = 3, find y when x = 1.\r
\n" ); document.write( "\n" ); document.write( "A. 45
\n" ); document.write( "B. 4.5
\n" ); document.write( "C. 18
\n" ); document.write( "D. 5
\n" ); document.write( "E. 1/5
\n" ); document.write( "F. 0.45\r
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\n" ); document.write( "\n" ); document.write( "9. If p varies inversely proportional to q. If q = 6 when p = 18, find q when p = 10.\r
\n" ); document.write( "\n" ); document.write( "A. 1/3
\n" ); document.write( "B. 3
\n" ); document.write( "C. 60
\n" ); document.write( "D. 10.8
\n" ); document.write( "E. 28
\n" ); document.write( "F. 180\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "10. If r varies inversely with w - 1. If r = 3/50 when w = 3, find r when w is 10.\r
\n" ); document.write( "\n" ); document.write( "A. 75
\n" ); document.write( "B. 10
\n" ); document.write( "C. 175
\n" ); document.write( "D. 1/75
\n" ); document.write( "E. 1/750
\n" ); document.write( "F. 1/175
\n" ); document.write( "

Algebra.Com's Answer #831490 by MathLover1(20850)\"\" \"About 
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8.
\n" ); document.write( " If \"y\" varies inversely as \"x\"then\r
\n" ); document.write( "\n" ); document.write( "\"y=k%2Fx\" \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " if \"y+=+15\" when \"x+=+3\", then\r
\n" ); document.write( "\n" ); document.write( "\"15=k%2F3\" \r
\n" ); document.write( "\n" ); document.write( "\"k=45\" \r
\n" ); document.write( "\n" ); document.write( "formula:\r
\n" ); document.write( "\n" ); document.write( "\"y=45%2Fx\" \r
\n" ); document.write( "\n" ); document.write( "find \"y+\"when \"x+=+1\"\r
\n" ); document.write( "\n" ); document.write( "\"y=45%2F1\" \r
\n" ); document.write( "\n" ); document.write( "\"y=45\" \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "answer:\r
\n" ); document.write( "\n" ); document.write( "A. \"45\"\r
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\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "9. If \"p+\"varies inversely proportional to \"q\". \r
\n" ); document.write( "\n" ); document.write( "\"p=k%2Fq\" \r
\n" ); document.write( "\n" ); document.write( "If \"q+=+6\" when \"p+=+18\" , \r
\n" ); document.write( "\n" ); document.write( "\"18=k%2F6\"\r
\n" ); document.write( "\n" ); document.write( "\"k=18%2A6\"\r
\n" ); document.write( "\n" ); document.write( "\"k=108\"\r
\n" ); document.write( "\n" ); document.write( "formula:\r
\n" ); document.write( "\n" ); document.write( "\"p=108%2Fq\" \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "find \"q+\" when \"p+=+10\":\r
\n" ); document.write( "\n" ); document.write( "\"10=108%2Fq\"
\n" ); document.write( "\"q=108%2F10\" \r
\n" ); document.write( "\n" ); document.write( "\"q=10.8\" \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "answer:\r
\n" ); document.write( "\n" ); document.write( "D. \"10.8\"\r
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\n" ); document.write( "\n" ); document.write( "10. If \"r\" varies inversely with \"w+-+1\". \r
\n" ); document.write( "\n" ); document.write( "\"r=k%2F%28w-1%29\"\r
\n" ); document.write( "\n" ); document.write( "If \"r+=+3%2F50+\"when \"w+=+3\",\r
\n" ); document.write( "\n" ); document.write( "\"3%2F50=k%2F%283-1%29\"\r
\n" ); document.write( "\n" ); document.write( "\"3%2F50=k%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"2%283%2F50%29=k\"\r
\n" ); document.write( "\n" ); document.write( "\"k=3%2F25\"\r
\n" ); document.write( "\n" ); document.write( "formula:\r
\n" ); document.write( "\n" ); document.write( "\"r=%283%2F25%29%2F%28w-1%29\"\r
\n" ); document.write( "\n" ); document.write( "\"r=3%2F%2825%28w-1%29%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " find \"r\" when \"w\" is \"10\"\r
\n" ); document.write( "\n" ); document.write( "\"r=3%2F%2825%2810-1%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"r=3%2F%2825%289%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"r=1%2F%2825%283%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"r=1%2F75\"\r
\n" ); document.write( "\n" ); document.write( "answer:\r
\n" ); document.write( "\n" ); document.write( "D. \"1%2F75\"\r
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