document.write( "Question 1042841: Suppose that y is inversely proportional to x and that y equals seven ninths when x=81. Complete parts ​(a) and ​(b).
\n" ); document.write( "​(a) Find the constant of proportionality k.
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\n" ); document.write( "\n" ); document.write( "​(b) Use y equals StartFraction k Over x EndFractiony=
\n" ); document.write( "k
\n" ); document.write( "x to find y when xequals=7.
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\n" ); document.write( " I need help on three questions please
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Algebra.Com's Answer #657899 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
y is inversely proportional to x and that y equals seven ninths when x=81.\r
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\n" ); document.write( "\n" ); document.write( "k is a proportionality or variation constant.\r
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\n" ); document.write( "\n" ); document.write( "\"system%28y=k%2Fx%2C7%2F9=k%2F81%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"k=%287%2F9%2981=63\"\r
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\n" ); document.write( "\"y=63%2Fx\"
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