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:
13
Step-by-step explanation:
Add the solution together to combine an answer. 4 times 11 = 44 - 10 = 30 + > 11 = 13
Answer:
Ethan is correct because |7| = 7 and |-3| = 3 so 7 + 3 = 10. Plot 7 on a number line, and move right 3 to get 10 on the line.
Step-by-step explanation:
Answer:
Exponents are simply repeated multiplication so the answer is 7 * 7 * 7 * 7.
47z²−25
Step-by-step explanation:
3627272727822881818181
