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Answer: 92
Step-by-step explanation:
Formula : Sum of first n numbers = Average x n
Given: Average score on first 6 tests= 84
A score on all 8 tests = 86
Then, Sum of first 6 numbers = 84 x 6 = 504
Sum of first 8 numbers = 86 x 8 = 688
Sum of two last numbers = (Sum of first 8 numbers) - (Sum of first 6 numbers)
= 688-504
=184
Average of last two numbers = (Sum of two last numbers )÷2
= 184÷2
= 92
Hence, the average of your last two test scores = 92.
Answer:
A. 11/12
Step-by-step explanation:
A. 11/12
B. 9/16
C. 1/12
D. 9/24
Cara = 8/12 candy bars
Marcus = 1/4 candy bars
What fraction of the candy bar did Cara and Marcus eat altogether?
Total candy bars = Cara + Marcus
= 8/12 + 1/4
= 8+3/12
= 11/12 candy bars
The correct answer is A. 11/12