document.write( "Question 196713This question is from textbook
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document.write( ": Tom's uncle owns a triangular piece of land. the perimeter feance that surrounds the land measures 378 yards. The shortest side is 30 yards longer than one-half of the longest side. the second longest side is 2 yards shorter than the longest side. What is the length of each side? \n" );
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Algebra.Com's Answer #147443 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Tom's uncle owns a triangular piece of land. the perimeter fence that surrounds \n" ); document.write( " the land measures 378 yards. \n" ); document.write( "The shortest side is 30 yards longer than one-half of the longest side. \n" ); document.write( "the second longest side is 2 yards shorter than the longest side. \n" ); document.write( "What is the length of each side? \n" ); document.write( ": \n" ); document.write( "Let the 3 sides be, a, b, c, with a being the longest side \n" ); document.write( "; \n" ); document.write( "The perimeter equation: \n" ); document.write( "a + b + c = 378 \n" ); document.write( ": \n" ); document.write( "Write an equation for each statement: \n" ); document.write( "\"The shortest side is 30 yards longer than one-half of the longest side.\" \n" ); document.write( "c = .5a + 30 \n" ); document.write( ": \n" ); document.write( "\"the second longest side is 2 yards shorter than the longest side.\" \n" ); document.write( "b = a - 2 \n" ); document.write( ": \n" ); document.write( "Substitute these for b & c in the perimeter equation \n" ); document.write( "a + (a-2) + (.5a + 30) = 378 \n" ); document.write( "a + a + .5a - 2 + 30 = 378 \n" ); document.write( "2.5a + 28 = 378 \n" ); document.write( "2.5a = 378 - 28 \n" ); document.write( "2.5a = 350 \n" ); document.write( "a = \n" ); document.write( "a = 140 yds is the longest side \n" ); document.write( "then \n" ); document.write( "b = 140 - 2 \n" ); document.write( "b = 138 yds \n" ); document.write( "and \n" ); document.write( "c = .5(140) + 30 \n" ); document.write( "c = 100 yds \n" ); document.write( "; \n" ); document.write( ": \n" ); document.write( "Check solution, find the perimeter \n" ); document.write( "140 + 138 + 100 = 378 \n" ); document.write( " |