document.write( "Question 280887: Find the dimensions of a rectangle with a perimeter of 90 cm if the length is 5 cm less than four times the width. \n" ); document.write( "
Algebra.Com's Answer #204152 by checkley77(12844)\"\" \"About 
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L=4W-5
\n" ); document.write( "2L+2W=90
\n" ); document.write( "2(4W-5)+2W=90
\n" ); document.write( "8W-10+2W=90
\n" ); document.write( "10W=90+10
\n" ); document.write( "10W=100
\n" ); document.write( "WE=100/10
\n" ); document.write( "W=10 ANS. FOR THE WIDTH.
\n" ); document.write( "L=4*10-5=40-5=35 ANS. FOR THE LENGTH.
\n" ); document.write( "PROOF:
\n" ); document.write( "2*35+2*10=90
\n" ); document.write( "70+20=90
\n" ); document.write( "90=90
\n" ); document.write( "
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