document.write( "Question 106679: Help me this ones wrecking my brain and is stressing me out!!!
\n" ); document.write( "The perimeter of a triangle ABC is 26m. BC is two thirds the length of AB and is 2m longer than ac. find the length of the sides.
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Algebra.Com's Answer #77636 by rcmcc(152)\"\" \"About 
You can put this solution on YOUR website!
To solve this question it is easier to make a set of simple equations.\r
\n" ); document.write( "\n" ); document.write( "because perimeter is x+y+z we can make the equation\r
\n" ); document.write( "\n" ); document.write( "\"ab%2Bbc%2Bac=26\"
\n" ); document.write( "now we can make equations for the other parts of the question
\n" ); document.write( "because BC is \"2%2F3\" the length of Ab we can make the equation\r
\n" ); document.write( "\n" ); document.write( "\"AB=%282%2F3%29BC\"\r
\n" ); document.write( "\n" ); document.write( "now we can add on the other part of the equation. because BC is 2cm longer than AC we can derive the equation\r
\n" ); document.write( "\n" ); document.write( "\"AC=BC%2B2\"\r
\n" ); document.write( "\n" ); document.write( "now you have the 3 equations below
\n" ); document.write( "\"ab%2Bbc%2Bac=26\"
\n" ); document.write( "\"AB=%282%2F3%29BC\"
\n" ); document.write( "\"AC=BC%2B2\"\r
\n" ); document.write( "\n" ); document.write( "the simplest way to solve is to substitute the 2 lower equations into the top equation in place of their respective variables. so you substitute (2/3)BC in place of AB in the top equation.\r
\n" ); document.write( "\n" ); document.write( "you get\r
\n" ); document.write( "\n" ); document.write( "\"%282%2F3%29BC%2BBC%2BBC%2B2=26\"
\n" ); document.write( "simplify\r
\n" ); document.write( "\n" ); document.write( "\"%288%2F3%29BC=24\"\r
\n" ); document.write( "\n" ); document.write( "divide by 8/3
\n" ); document.write( "BC=9
\n" ); document.write( "Now because you have BC solved substitute into the other equations to solve for the remainder sides
\n" ); document.write( "\"AC=9%2B2\"
\n" ); document.write( "\"AB=%282%2F3%299\"
\n" ); document.write( "so AC=11
\n" ); document.write( "and AB=6\r
\n" ); document.write( "\n" ); document.write( "the lengths of the 3 sides of the triagle are 9,11,6
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