SOLUTION: Danielle’s test scores are 78, 84, 86, and 88. The final exam will count as 2/3 of the final grade. What score does Danielle need on the final in order to earn a B, which requires

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Danielle’s test scores are 78, 84, 86, and 88. The final exam will count as 2/3 of the final grade. What score does Danielle need on the final in order to earn a B, which requires       Log On


   



Question 630722: Danielle’s test scores are 78, 84, 86, and 88. The final exam will count as 2/3 of 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 by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/3*((78+84+86+88)/4)+2x/3=80
x=78
1/3*((78+84+86+88)/4)+2y/3=90
y=93