document.write( "Question 1094463: The triangle below has a total perimeter of 450 cm:\r
\n" ); document.write( "\n" ); document.write( "picture of a triangle with sides 128 and 150. Third side unknown\r
\n" ); document.write( "\n" ); document.write( "Write an equation and solve it to find the length of the longest side of the triangle.\r
\n" ); document.write( "\n" ); document.write( " 128x + 150 = 450; x = 2.34 cm
\n" ); document.write( " x + 278 = 450; x = 172 cm
\n" ); document.write( " 2x + 278 = 450; x = 86 cm
\n" ); document.write( " 150x + 128 = 450; x = 2.15 cm
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Algebra.Com's Answer #709053 by Alan3354(69443)\"\" \"About 
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The triangle below has a total perimeter of 450 cm:\r
\n" ); document.write( "\n" ); document.write( "picture of a triangle with sides 128 and 150. Third side unknown\r
\n" ); document.write( "\n" ); document.write( "Write an equation and solve it to find the length of the longest side of the triangle.
\n" ); document.write( "=================
\n" ); document.write( "Perimeter = sum of the 3 side lengths.
\n" ); document.write( "That's the same as the \"total perimeter\"
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\n" ); document.write( "a + b + c = 450
\n" ); document.write( "128 + 150 + c = 450
\n" ); document.write( "c = 172 cm
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