document.write( "Question 291667: An office has some .20 stamps and some .28 stamps. All together the office has 140 stamps for a total value of $31.20. How many of each type of stamp does the office have? Using only x \n" ); document.write( "
Algebra.Com's Answer #210853 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! .2*x+.28(140-x)=31.20 \n" ); document.write( "100 20 centers and 40 28 centers \n" ); document.write( " \n" ); document.write( " |