Question

Danielle’s test scores are 74, 84, 86, and 88. The final exam will count as StartFraction 2 Over 3 EndFractionof the final grade. What score does Danielle need on the final in order to earn a B, which requires an average score of 80? What score does she need to earn an A, which requires an average of 90?

Answer 1

first find the average of 74,84,86, and 88, then multiply that by (1/3)

then solve

(average of first 4 scores)(1/3) + (final score)(2/3) = 80

to get the final score. then do the same thing with 90 instead of 80, if she wants an A

Answer 2

THANK YOU