document.write( "Question 1163969: A certain type of gutter comes in 7-foot, 9-foot, and 11-foot sections. How many different lengths can be formed using three sections of gutter? \n" ); document.write( "
Algebra.Com's Answer #788231 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "All lengths are odd numbers; the sum of three odd numbers is always an odd number. \n" ); document.write( "Minimum length with three pieces: 3*7 feet = 21 feet. \n" ); document.write( "Maximum length with three pieces: 3*11 feet = 33 feet. \n" ); document.write( "It should be easy to see, by playing with the different lengths -- or by logical reasoning -- that a total length that is any odd number of feet between 21 and 33 inclusive is possible. \n" ); document.write( "ANSWER: 7 different lengths -- 21, 23, 25, 27, 29, 31, and 33 feet. \n" ); document.write( " \n" ); document.write( " |