
M15: Solving Systems of Linear Equations by Elimination
Quiz by JOCELYN O. HULIP
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The sum of the ages of two sisters is 30, while the difference of their ages is -6. If x and y represent the age of each sister, which variable can be eliminated first?
Two types of milk are choses by a chocolate manufacturer in Marikina City. One type has 20% milkfat and another has 16% milkfat. Each type must be used to come up with 35liters of 18% milkfat. Fill in the table with the missing information.

