Question 1062023
3c+2m = 10.80 (1)
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1c+3m = 5.35 multiply both sides times 3:
3c+9m =16.05 (2)
Now subtract (2) from (1):
3c+2m = 10.80 
-
3c+9m =16.05 
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0c+(-7m) = -5.25
-7m = -5.25 divide both sides by 7 and remember that -/- = +
m = 0.75 This is the cost per pound of the mints.
:
John