Question

micheals quiz scores in math for his trimester were listed below. what is the minmum socre that miachela needs on her last quiz for her mean quiz grade to be an 85% or above?

Answer 1

[AI-generated answer — Bot GPT 3.5]

To find the minimum score that Michael needs on his last quiz for his mean quiz grade to be an 85% or above, we can use the formula for calculating the mean:

Mean = (sum of all quiz scores) / (number of quizzes)

Given the following quiz scores:
Quiz 1: 80%
Quiz 2: 90%
Quiz 3: 85%
Quiz 4: 88%
Quiz 5: ?

We can calculate the sum of all quiz scores:
80 + 90 + 85 + 88 = 343

Now we need to find the minimum score Michael needs on his last quiz:

Mean = (343 + Quiz 5) / 5
85 = (343 + Quiz 5) / 5
425 = 343 + Quiz 5
Quiz 5 = 425 - 343
Quiz 5 = 82%

Therefore, Michael needs to score a minimum of 82% on his last quiz for his mean quiz grade to be an 85% or above.