document.write( "Question 581911: Of the 23 homes in a subdivision, 7 need roofing and 5 need landscaping. If two homes need both roofing and landscaping, how many need neither? \n" ); document.write( "
Algebra.Com's Answer #371869 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! There are 7-2 = 5 homes that need only roofing\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are 5-2 = 3 homes that need only landscaping\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So there are 5+3+2 = 10 homes that need at least one of the two\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Therefore, there are 23 - 10 = 13 homes that need neither. \n" ); document.write( " |