document.write( "Question 1062023: In a certain candy store, 3 pounds of candy and 2 pounds of mints cost $10.80, and 1 pound of candy and 3 pounds of mints cost $5.35. What is the cost per pound of the mints?\r
\n" );
document.write( "\n" );
document.write( "A.)mints are 65¢ per lb
\n" );
document.write( "B.)mints are 75¢ per lb
\n" );
document.write( "C.)mints are 85¢ per lb \n" );
document.write( "
Algebra.Com's Answer #676777 by addingup(3677)![]() ![]() You can put this solution on YOUR website! 3c+2m = 10.80 (1) \n" ); document.write( "------------------------------ \n" ); document.write( "1c+3m = 5.35 multiply both sides times 3: \n" ); document.write( "3c+9m =16.05 (2) \n" ); document.write( "Now subtract (2) from (1): \n" ); document.write( "3c+2m = 10.80 \n" ); document.write( "- \n" ); document.write( "3c+9m =16.05 \n" ); document.write( "-------------- \n" ); document.write( "0c+(-7m) = -5.25 \n" ); document.write( "-7m = -5.25 divide both sides by 7 and remember that -/- = + \n" ); document.write( "m = 0.75 This is the cost per pound of the mints. \n" ); document.write( ": \n" ); document.write( "John \n" ); document.write( " |