document.write( "Question 983225: In the figure above, side AC of triangle ABC lies on line l. What is the value of y?\r
\n" ); document.write( "\n" ); document.write( "a. 22
\n" ); document.write( "b. 24
\n" ); document.write( "c. 25
\n" ); document.write( "d. 30 \r
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\n" ); document.write( "http://152.46.13.240/MoodleContent/SATprep/Math%20Unit%207/Lesson%203%20Notes%20Quiz/cb1.png
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Algebra.Com's Answer #604031 by MathLover1(20855)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "as you can see, \"5y\"° is an external angle of triangle \"ABC\"\r
\n" ); document.write( "\n" ); document.write( "we know that \"5y=180-x\"°\r
\n" ); document.write( "\n" ); document.write( "since angle \"B\" is \"40\"°, and angle \"A=x\" and \"C=x\", we have\r
\n" ); document.write( "\n" ); document.write( "\"x%2Bx%2B40=180\"°\r
\n" ); document.write( "\n" ); document.write( "\"2x=180-40\"°\r
\n" ); document.write( "\n" ); document.write( "\"x=140%2F2\"°\r
\n" ); document.write( "\n" ); document.write( "\"x=70\"°\r
\n" ); document.write( "\n" ); document.write( "so, angle \"A=70\"° and \"C=70\"°\r
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\n" ); document.write( "\n" ); document.write( "then\r
\n" ); document.write( "\n" ); document.write( "\"5y=180-70\"°\r
\n" ); document.write( "\n" ); document.write( "\"5y=110\"°\r
\n" ); document.write( "\n" ); document.write( "\"y=110%2F5\"°\r
\n" ); document.write( "\n" ); document.write( "\"y=22\"°\r
\n" ); document.write( "\n" ); document.write( "so, your answer is: a. \"22\"\r
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