document.write( "Question 234793: two sides of a pentagon have length (3x-5) cm and three sides of length (2x-1) cm. if the perimeter is 89 cm, what is the length of longest side?
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Algebra.Com's Answer #173104 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 2(3X-5)+3(2X-1)=89 \n" ); document.write( "6X-10+6X-3=89 \n" ); document.write( "12X=89+10+3 \n" ); document.write( "12X=102 \n" ); document.write( "X=102/12 \n" ); document.write( "X=8.5 ANS. \n" ); document.write( "3*8.5-5=25.5-5=20.5 ANS. FOR THE LONGEST SIDES. \n" ); document.write( "2*8.5-1=17-1=16 ANS. FOR THE SHORT SIDES. \n" ); document.write( "PROOF: \n" ); document.write( "2*20.5+3*16=89 \n" ); document.write( "41+48=89 \n" ); document.write( "89=89 \n" ); document.write( " |