SOLUTION: The average of the first four of Arlene’s Algebra 1 test scores was 89, and her average for the last three was 75. What was Arlene’s overall average?

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Question 281172: The average of the first four of Arlene’s Algebra 1 test scores was 89, and her average for the last three was 75. What was Arlene’s overall average?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(4*89+3*75)/7=83