document.write( "Question 366799: A leather coin purse has the shape of a triangle. Two sides are equal in lenght and the third side is 3 centimeters shorter than one and one-half times the length of the equal sides. The perimeter is 28.5 centimeters. Find the lengths of the sides. \n" ); document.write( "
Algebra.Com's Answer #261473 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let the equal sides be x cm \n" ); document.write( "the third side \n" ); document.write( "1 1/2 times the equal side = 3x/2 \n" ); document.write( "3 cm short \n" ); document.write( "3x/2 -3 will be the third side. \n" ); document.write( "... \n" ); document.write( "x+x+3x/2-3=28.5 \n" ); document.write( "7x/2 -3 = 28.5 \n" ); document.write( "7x/2 = 28.5 +3 \n" ); document.write( "7x/2= 31.5 \n" ); document.write( "multiply by 2 \n" ); document.write( "7x = 63 \n" ); document.write( "/7 \n" ); document.write( "x= 9 \n" ); document.write( "x=9 which is the equal side \n" ); document.write( "third side = 9*3/2 - 3 \n" ); document.write( "=27/2-3 \n" ); document.write( "=13.5 -3 \n" ); document.write( "=10.5 is the third side \n" ); document.write( "... \n" ); document.write( "CHECK \n" ); document.write( "9+9+10.5 \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |