document.write( "Question 1095293: In the United States, the number of nuclear power plants in the south exceeds that in the midwest by 11. together these two areas have a total of 73 nuclear power plants. How many are located in the South? \n" ); document.write( "

Algebra.Com's Answer #709844 by ikleyn(52786) $\"\"$ $\"About$

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document.write( "S - M = 11,\r\n" );
document.write( "S + M = 73.\r\n" );
document.write( "------------------Add the two equations.  You will get\r\n" );
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document.write( "2S = 11 + 73 = 84,   which implies  S =  = 42 power plants in the South.\r\n" );
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document.write( "Then in Midwest  there are M = 73 - S = 73 - 42 = 31 power plants.\r\n" );
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