document.write( "Question 111870: Please help.\r
\n" ); document.write( "\n" ); document.write( "If y varies directly with x, and y = 2590 when x = 700,
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Algebra.Com's Answer #81623 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "If $\"y\"$ varies directly with $\"x\"$ with the constant of variation $\"k\"$ , then we have:\r
\n" ); document.write( "\n" ); document.write( " $\"y+=+k%2Ax\"$ \r
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\n" ); document.write( "\n" ); document.write( "if $\"y+=+2590\"$ and $\"x+=+700\"$ , find the constant of variation $\"k\"$ :
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\n" ); document.write( " $\"y+=+k%2Ax\"$ ЕЕ..divide both sides by $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y%2Fx+=+k%2Ax%2Fx\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y%2Fx+=+k\"$ Еor\r
\n" ); document.write( "\n" ); document.write( " $\"k+=+y%2Fx+\"$ ЕЕЕЕ..now plug in values for $\"x\"$ and $\"y\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"k+=+2590%2F700\"$ ЕЕЕ..reduce\r
\n" ); document.write( "\n" ); document.write( " $\"k+=+259%2F70\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"k+=+3.7\"$ ЕЕЕ..\r
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