$9,900
10% off of 10,000 is 9,000
10% more than 9,000 is 9,900
Answer: 2(15000x2)+x+600)
Step-by-step explanation:
Answer:
89.84375
Step-by-step explanation:
Given that on a finance exam, 15 accounting majors had an average grade of 90. On the same exam, 7 marketing majors averaged 85, and 10 finance majors averaged 93.
To find weighted mean.
Here weights can be considered as number of majors in each subject

Weighted total = 1350+595+930 = 2875
Weighted mean = weighted total/total students

Answer:
36
Step-by-step explanation:
because 10 is 1/2 of 20 and 72/2 = 36