document.write( "Question 307047: Hello, I had some problems deriving a algebraic equation from this word problem...\r
\n" ); document.write( "\n" ); document.write( "The volume of a rectangular box is 64ft^3. If the width is 3 times longer than the height, and the length is 9 times longer than the height, find the dimensions of the box.\r
\n" ); document.write( "\n" ); document.write( "The formula for finding the volume of a retangular box is V=lwh.\r
\n" ); document.write( "\n" ); document.write( "I came up with 64=9l3wh, but no luck...and suggestions? \r
\n" ); document.write( "\n" ); document.write( "Thanks again, you all rock!\r
\n" ); document.write( "\n" ); document.write( "Alex
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Algebra.Com's Answer #219663 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Since \"the width is 3 times longer than the height, and the length is 9 times longer than the height\", this means that \"W=3H\" and \"L=9H\"\r
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\n" ); document.write( "\n" ); document.write( "\"V=LWH\" Start with the given volume formula.\r
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\n" ); document.write( "\n" ); document.write( "\"64=%289H%29%283H%29H\" Plug in \"V=64\" (the given volume) \"W=3H\" and \"L=9H\"\r
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\n" ); document.write( "\n" ); document.write( "\"64=27H%5E3\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"64%2F27=H%5E3\" Divide both sides by 27.\r
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\n" ); document.write( "\n" ); document.write( "\"root%283%2C64%2F27%29=H\" Take the cube root of both sides to isolate 'H'\r
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\n" ); document.write( "\n" ); document.write( "\"4%2F3=H\" Take the cube root of \"64%2F27\" to get \"4%2F3\"\r
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\n" ); document.write( "\n" ); document.write( "So the height is \"H=4%2F3\" ft. Simply plug this value into \"W=3H\" and \"L=9H\" to find the width and length respectively. I'll let you do this.
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