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:
Not sure if this is correct but I think 100 meters. Because he was directly south, meaning the extra 5° doesnt matter at this point.
I may be wrong but I believe that the answer is 8.
19.2 because the 0.09 changes the 0.1 to a 0.2
76 / 100 = 0.76 , 0.76 x 45 = 34.2