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?
A.mints are 65¢ per lb
B.mints are 75¢ per lb
C.mints are 85¢ per lb
Rewrite the second equation as: c = 5.35 - 3m Now plug this new equation into the first equation in place of the c.
3(5.35 - 3m) + 2m = 10.80 16.05 - 9m + 2m = 10.80 Combine like terms 16.05 - 7m = 10.80 Subtract 16.05 from both sides -7m = 10.80-16.05 -7m = -5.25 Divide both sides by -7 m = 5.25 m - .75 Letter B 75 cents per pound
