document.write( "Question 178703: If 1/v+1/u=1/f, express v in terms of u and f\r
\n" ); document.write( "\n" ); document.write( "Now calculate the value of v when f=15 and u=40 \n" ); document.write( "

Algebra.Com's Answer #133668 by HyperBrain(694) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"1%2Fv+%2B+1%2Fu=1%2Ff\"$
\n" ); document.write( " $\"1%2Fv=1%2Ff+-+1%2Fu\"$
\n" ); document.write( " $\"1%2Fv=%28u-f%29%2Fuf\"$
\n" ); document.write( " $\"v=uf%2F%28u-f%29\"$ \r
\n" ); document.write( "\n" ); document.write( "v=(40-15)/(15*40)=25/600=1/24\r
\n" ); document.write( "\n" ); document.write( "//You may contact me at adrianvidal07@hotmail.com\r
\n" ); document.write( "\n" ); document.write( "Power up,
\n" ); document.write( "HyperBrain!\r
\n" ); document.write( "\n" ); document.write( "Stop this mess! Visit: http://uselessplastic.wordpress.com \n" ); document.write( "

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