document.write( "Question 547630: the height of a triangle is 5cm more than three times the base. if the area of the triangle is 6cm^2, what is the base.\r
\n" ); document.write( "\n" ); document.write( "A=6cm^2
\n" ); document.write( "h=3b+5cm
\n" ); document.write( "b=?\r
\n" ); document.write( "\n" ); document.write( "6cm^2=(1/2) x b x (3b+5cm)\r
\n" ); document.write( "\n" ); document.write( "I keep getting stuck at: 12cm^2 = 3b^2 + (5cm x b)\r
\n" ); document.write( "\n" ); document.write( "Per the answer key, the answer is b= (4/3)cm but I am unable to get to the answer from the question, nor the question from the answer as I always get stuck in the same place
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Algebra.Com's Answer #356531 by ankor@dixie-net.com(22740)\"\" \"About 
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the height of a triangle is 5cm more than three times the base.
\n" ); document.write( " if the area of the triangle is 6cm^2, what is the base.
\n" ); document.write( ":
\n" ); document.write( "Let x = the length of the base
\n" ); document.write( "then
\n" ); document.write( "(3x+5) = the height
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\n" ); document.write( "The Area
\n" ); document.write( "\"1%2F2\"*x(3x+5) = 6
\n" ); document.write( "get rid of the fraction, multiply both sides by 2
\n" ); document.write( "x(3x+5) = 12
\n" ); document.write( "3x^2 + 5x = 12
\n" ); document.write( "3x^2 + 5x - 12 = 0
\n" ); document.write( "A quadratic equation, we can factor to:
\n" ); document.write( "(3x-4)(x+3) = 0
\n" ); document.write( "the positive solution, all we want here
\n" ); document.write( "3x = 4
\n" ); document.write( "x = \"4%2F3\"
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\n" ); document.write( ":
\n" ); document.write( "see if that checks out
\n" ); document.write( "\"1%2F2\" * \"4%2F3\" * (3*(4/3)+5) =
\n" ); document.write( "\"1%2F2\" * \"4%2F3\" * 9 = \"36%2F6\" = 6
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