Answer:
84
Step-by-step explanation:
Pretend her first 3 quizzes were all 83 since that was the average. So the 4th was 87.
83+83+83+87 = 336
Divide by the total number of quizzes because they are equally weighted.
336/4 = 84
Her new average score is 84.
Answer:
2000 times
Step-by-step explanation:
Given
Sara:


Sam:


To determine the number of times, the mass of Saturn is greater than the mass of Mercury, we simply do the following:

Using Sara's measurement; this gives:

Apply law of indices




Approximate


Answer:
Which expression has a greatest common factor of 3h?
Step-by-step explanation: