document.write( "Question 258857: the area of a rectangle is 108cm2(squared. the ratio of the width to the lenght is 3:4. find the lenght and the width. \n" ); document.write( "
Algebra.Com's Answer #190587 by Stitch(470)\"\" \"About 
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Area of a rectangle = Length * Width\r
\n" ); document.write( "\n" ); document.write( "Given: Area = 108cm^2
\n" ); document.write( "Ratio = 3:4 \r
\n" ); document.write( "\n" ); document.write( "The equation: \"%283%2AX%29+%2A+%284%2AX%29+=+108\"
\n" ); document.write( "Simplify the equation
\n" ); document.write( "\"12%2AX%5E2+=+108\" Divide by sides by 12
\n" ); document.write( "\"X%5E2+=+9\" Take the square root of both sides
\n" ); document.write( "\"X+=+3\"\r
\n" ); document.write( "\n" ); document.write( "So using the ration of 3:4 and our value of X
\n" ); document.write( "The width of the retangle = X * 3
\n" ); document.write( "Width = \"highlight%289cm%29\"
\n" ); document.write( "The length of the rectangle = X * 4
\n" ); document.write( "Length = \"highlight%2812cm%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "You can check the answer by taking \"9cm+%2A+12cm+=+108cm%5E2\"
\n" ); document.write( "Also if you divide 9 and 12 by 3, you get 3:4
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