The average score of all the students in both classes is 84.
<h3>How to calculate the average?</h3>
The class with 30 students had an average score of 80 on a test. The total score will be:
= 30 × 80
= 2400
A class with 20 students had an average score of 90 on the same test. The total score will be:
= 20 × 90
= 1800
Total scores = 2400 + 1800 = 4200
Number of students = 20 + 30 = 50
The average score will be:
= Total score / Total students
= 4200 / 50
= 84
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bro i think i know the answer but im wrong all the time
Answer: 3/5
Step-by-step explanation: 3/5 is equal to .6 so if is greater than .5625
2x77}{x} theis way is the best answee
Answer:
6.75 round to 7
Step-by-step explanation:
