document.write( "Question 329680: two angles are complementary. The sum of the measure of the first angle and half the second angle is 79.5 degrees? what is the measure of the half angle? \n" ); document.write( "
Algebra.Com's Answer #236319 by nerdybill(7384)\"\" \"About 
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two angles are complementary. The sum of the measure of the first angle and half the second angle is 79.5 degrees? what is the measure of the half angle?
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\n" ); document.write( "A pair of angles are complementary if the sum of their measures is 90 degrees.
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\n" ); document.write( "Let x = first angle
\n" ); document.write( "and y = second angle
\n" ); document.write( "then
\n" ); document.write( "x+y = 90 (equation 1)
\n" ); document.write( "x + y/2 = 79.5 (equation 2)
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\n" ); document.write( "Solve equation 1 for x:
\n" ); document.write( "x+y = 90
\n" ); document.write( "x = 90-y
\n" ); document.write( "Substitute above into equation 2 and solve for y:
\n" ); document.write( "x + y/2 = 79.5
\n" ); document.write( "90-y + y/2 = 79.5
\n" ); document.write( "90-y/2 = 79.5
\n" ); document.write( "90 = 79.5 + y/2
\n" ); document.write( "10.5 = y/2
\n" ); document.write( "21 degrees = y (second angle)
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\n" ); document.write( "First angle:
\n" ); document.write( "x+y = 90
\n" ); document.write( "x+21 = 90
\n" ); document.write( "x = 69 degrees
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\n" ); document.write( "Not sure what the question is but
\n" ); document.write( "then \"half the second angle\" is
\n" ); document.write( "(1/2)(21) = 10.5 degrees \n" ); document.write( "
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