document.write( "Question 989658: a rectangle's length is 8 cm more than three times its width. If the perimeter is 128 cm, find the length and the width \n" ); document.write( "
Algebra.Com's Answer #610017 by macston(5194)\"\" \"About 
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\n" ); document.write( "W=width; L=length=3W+8cm
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\n" ); document.write( "P=2(L+W)
\n" ); document.write( "128cm=2((3W+8cm)+W)
\n" ); document.write( "64cm=4W+8cm
\n" ); document.write( "56cm=4W
\n" ); document.write( "14cm=W ANSWER 1: The width is 14cm.
\n" ); document.write( "L=3W+8cm=3(14cm)+8cm=50cm ANSWER 2: The length is 50 cm.
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\n" ); document.write( "CHECK:
\n" ); document.write( ".
\n" ); document.write( "P=2(L+W)
\n" ); document.write( "128cm=2(50cm+14cm)
\n" ); document.write( "128cm=2(64cm)
\n" ); document.write( "128cm=128cm\r
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