document.write( "Question 1087621: The length of rectangular box with a fixed height varies directly as the volume and
\n" ); document.write( "inversely as the width. If the length is 15 cm when the volume is \"l260cm%5E3\" and the width is 8 cm, find the length when the volume is \"840+cm%5E3\" and the width is 5 cm.
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Algebra.Com's Answer #701923 by josgarithmetic(39630)\"\" \"About 
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\n" ); document.write( "The length of rectangular box with a fixed height varies directly as the volume and
\n" ); document.write( "inversely as the width. If the length is 15 cm when the volume is l260cm^3 and the width is 8 cm,
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\n" ); document.write( "\n" ); document.write( "L, length
\n" ); document.write( "k, variation constant
\n" ); document.write( "w, width
\n" ); document.write( "v, volume\r
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\n" ); document.write( "\n" ); document.write( "\"L=kv%2Fw\"\r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( "\"Lw%2Fv=k\"\r
\n" ); document.write( "\n" ); document.write( "\"k=15%2A8%2F1260\"\r
\n" ); document.write( "\n" ); document.write( "\"k=120%2F1260\"\r
\n" ); document.write( "\n" ); document.write( "\"k=2%2A2%2A3%2F%282%2A7%2A3%2A3%29\"\r
\n" ); document.write( "\n" ); document.write( "\"k=2%2F21\"\r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28L=%282%2F21%29v%2Fw%29\"\r
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\n" ); document.write( "find the length when the volume is 840+cm%5E3 and the width is 5 cm.
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\n" ); document.write( "\n" ); document.write( "Just substitute the values and evaluate L.
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