document.write( "Question 212339: This is the problem out of the book. \"Angle L and Angle M are complementary angles. Angle N and Angle P are complementary angles. If the measure of angle L=y-2, the measure of angle M=2x+3, the measure of angle N=2x-y, and the measure of angle P=x-1, find the values of x, y, and the measures of angles L, M, N, and O.\" Please help me I don't even know where to start. \n" ); document.write( "
Algebra.Com's Answer #160704 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! This is the problem out of the book. \"Angle L and Angle M are complementary angles. \n" ); document.write( "Angle N and Angle P are complementary angles. \n" ); document.write( " If the measure of angle L=y-2, the measure of angle M=2x+3, the measure of angle N=2x-y, and the measure of angle P=x-1, \n" ); document.write( " find the values of x, y, and the measures of angles L, M, N, and O \n" ); document.write( ": \n" ); document.write( "You can do this. A lot of steps, but each one is pretty simple \n" ); document.write( ": \n" ); document.write( "\"Angle L and Angle M are complementary angles. \"; from these statements write: \n" ); document.write( "L + M = 90 \n" ); document.write( ": \n" ); document.write( "\"Angle N and Angle P are complementary angles.\" \n" ); document.write( "N + P = 90 \n" ); document.write( ": \n" ); document.write( "\"If the measure of angle L = y-2, the measure of angle M=2x+3,\" \n" ); document.write( "L + M = 90 \n" ); document.write( "Substitute for L and M, do some basic algebra and you have: \n" ); document.write( "(y-2) + (2x+3) = 90 \n" ); document.write( "2x + y - 2 + 3 = 90 \n" ); document.write( "2x + y + 1 = 90 \n" ); document.write( "2x + y = 90 - 1 \n" ); document.write( "2x + y = 89 \n" ); document.write( ": \n" ); document.write( " the measure of angle N=2x-y, and the measure of angle P=x-1, \n" ); document.write( "N + P = 90 \n" ); document.write( "Substitute for N and P and do the same as above \n" ); document.write( "(2x-y) + (x-1) = 90 \n" ); document.write( "2x + x - y - 1 = 90 \n" ); document.write( "3x - y = 90 + 1 \n" ); document.write( "3x - y = 91 \n" ); document.write( ": \n" ); document.write( "We can use elimination with these two equations \n" ); document.write( "3x - y = 91 \n" ); document.write( "2x + y = 89 \n" ); document.write( "--------------addition eliminates y, find x \n" ); document.write( "5x = 180 \n" ); document.write( "x = \n" ); document.write( "x = 36 \n" ); document.write( ": \n" ); document.write( "Find y using the equation 2x + y = 89, substitute for x \n" ); document.write( "2(36) + y = 89 \n" ); document.write( "72 + y = 89 \n" ); document.write( "y = 89 - 72 \n" ); document.write( "y = 17 \n" ); document.write( "; \n" ); document.write( "We know the values: x=36; y=17 \n" ); document.write( ": \n" ); document.write( "\" find the measures of angles L, M, N, and O, \n" ); document.write( "use the given equation and substitute for x and y \n" ); document.write( "L = y - 2 \n" ); document.write( "L = 17 - 2 \n" ); document.write( "L = 15 \n" ); document.write( ": \n" ); document.write( "M = 2(36) + 3 \n" ); document.write( "M = 72 + 3 \n" ); document.write( "M = 75 \n" ); document.write( "We can check this: 15 + 75 = 90 as L and M are complimentary \n" ); document.write( ": \n" ); document.write( "N = 2x - y \n" ); document.write( "N = 2(36) - 17 \n" ); document.write( "N = 72 - 17 \n" ); document.write( "N = 55 \n" ); document.write( ": \n" ); document.write( "P = 36 - 1 \n" ); document.write( "P = 35 \n" ); document.write( "Check this for complimentary 55 + 35 = 90 \n" ); document.write( ": \n" ); document.write( "we have \n" ); document.write( "x = 36 \n" ); document.write( "y = 17 \n" ); document.write( "L = 15 \n" ); document.write( "M = 75 \n" ); document.write( "N = 55 \n" ); document.write( "P = 35 \n" ); document.write( ": \n" ); document.write( "How about this, did it make sense? Any questions? ankor@att.net \n" ); document.write( " |