Lizette scored 92 on her third quiz giving her an average of 94. What is Lizette's average in her first two quizzes?
If Lizette's average on the 3 quizzes is 94, then the sum of her scores in the 3 quizzes is 94 x 3 = <T>multiply(94, 3)=282
This means that the sum of her scores in the first 2 quizzes is 282 - 92 = <T>subtract(282, 92)=190
Thus, her average for the first 2 quizzes is 190/2 = <T>divide(190, 2)=95.0
