document.write( "Question 999866: mary is making a rectangular canvas for her next painting. she wants the length of the canvas to be 4 feet more than twice the width of the canvas. the area of canvas must be 30 square feet. what should be the dimensions of the canvas \n" ); document.write( "
Algebra.Com's Answer #617412 by josgarithmetic(39620)\"\" \"About 
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w and L, width and length;
\n" ); document.write( "\"system%28L=4%2B2w%2CwL=30%29\"\r
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\n" ); document.write( "\n" ); document.write( "This will give a quadratic equation allowing to solve first for w.\r
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\n" ); document.write( "\n" ); document.write( "\"w%282w%2B4%29=30\"\r
\n" ); document.write( "\n" ); document.write( "\"2w%5E2%2B4w-30=0\"\r
\n" ); document.write( "\n" ); document.write( "\"w%5E2%2B2w-15=0\"
\n" ); document.write( "Formula for general solution of a quadratic equation is what could use, but try factoring first.
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