document.write( "Question 22983: A postal clerk sold 75 stamps for $19.95. Some were 20-cent and some were 33-cent. How many of each kind did he sell. \n" ); document.write( "
Algebra.Com's Answer #11376 by stanbon!(97)![]() ![]() ![]() You can put this solution on YOUR website! Let the number of 20 cent stamps be \"x\" \n" ); document.write( "Then number of 33 cent stamps is \"75-x\" \n" ); document.write( "Value of 20-cent stamps is (20)x cents \n" ); document.write( "Value of 33-cent stamps is (33)(75-x)= (2475-33x) cents \n" ); document.write( "EQUATION: \n" ); document.write( "Value of 20 cent + Value of 33 cent is 1995 cents \n" ); document.write( " 20x +2475-33x = 1995 \n" ); document.write( " -13x = -480 \n" ); document.write( " x= 36.923... \n" ); document.write( "This answer doesn't make any sense as you cannot have \n" ); document.write( "36.923... stamps.\r \n" ); document.write( "\n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |