document.write( "Question 69790: A postal clerk sold 75 stamps, some of which were 5 cents and some were 8 cents. The total amount was $4.80. How many of each stamp was sold? \n" ); document.write( "
Algebra.Com's Answer #49727 by checkley75(3666)\"\" \"About 
You can put this solution on YOUR website!
E+F=75 E=75-F
\n" ); document.write( "8E+5F=480
\n" ); document.write( "8(75-F)+5F=480
\n" ); document.write( "600-8F+5F=480
\n" ); document.write( "-8F+5F=480-600
\n" ); document.write( "-3F=-120
\n" ); document.write( "F=-120/-3
\n" ); document.write( "F=40 NUMBER OF FIVE CENT STAMPS.
\n" ); document.write( "E+40=75
\n" ); document.write( "E=75-40
\n" ); document.write( "E=35 EIGHT CENT STAMPS
\n" ); document.write( "PROOF
\n" ); document.write( "8*35+5*40=480
\n" ); document.write( "280+200=480
\n" ); document.write( "480=480\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );