document.write( "Question 222988: The second angle of a triangle is 4 times as large as the first. The third angle is 120 degrees more than the sum of the two angles. Find the measure of the second angle. \n" ); document.write( "
Algebra.Com's Answer #166863 by drj(1380)\"\" \"About 
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The second angle of a triangle is 4 times as large as the first. The third angle is 120 degrees more than the sum of the two angles. Find the measure of the second angle.\r
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\n" ); document.write( "\n" ); document.write( "Step 1. The three angles of a triangle add up to 180 degrees.\r
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\n" ); document.write( "\n" ); document.write( "Step 2. Let x be the first angle.\r
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\n" ); document.write( "\n" ); document.write( "Step 3. Let 4x be the second angle since it is 4 times as large as the first.\r
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\n" ); document.write( "\n" ); document.write( "Step 4. Let x+4x=5x be the sum of the first two angles.\r
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\n" ); document.write( "\n" ); document.write( "Step 5. Let 5x+120 be the third angle since it is 120 degrees more than the sum of the two angles.\r
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\n" ); document.write( "\n" ); document.write( "Step 6. Then, x+4x+5x+120=180 degrees.\r
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\n" ); document.write( "\n" ); document.write( "Step 7. Solving the equation in Step 6 yields the following steps\r
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\n" ); document.write( "\n" ); document.write( "\"10x%2B120=180\"\r
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\n" ); document.write( "\n" ); document.write( "Subtract 120 from both sides of the equation\r
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\n" ); document.write( "\n" ); document.write( "\"10x%2B120-120=180-120\"\r
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\n" ); document.write( "\n" ); document.write( "\"10x=60\"\r
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\n" ); document.write( "\n" ); document.write( "Divide 10 to both sides of the equation\r
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\n" ); document.write( "\n" ); document.write( "\"10x%2F10=60%2F10\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=6\". Then \"4x=24\" and \"5x%2B120=150\". Note these three angles add up to 180 degrees.\r
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\n" ); document.write( "\n" ); document.write( "Step 8. ANSWER: The second angle is 24 degrees.\r
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\n" ); document.write( "\n" ); document.write( "I hope the above steps and explanation were helpful. \r
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\n" ); document.write( "\n" ); document.write( "For Step-By-Step videos on Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for \r
\n" ); document.write( "\n" ); document.write( "Trigonometry please visit http://www.FreedomUniversity.TV/courses/Trigonometry. \r
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\n" ); document.write( "\n" ); document.write( "Also, good luck in your studies and contact me at john@e-liteworks.com for your future math needs.\r
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\n" ); document.write( "\n" ); document.write( "Respectfully,
\n" ); document.write( "Dr J\r
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\n" ); document.write( "\n" ); document.write( "http://www.FreedomUniversity.TV\r
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