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horrorfan [7]
3 years ago
12

Suppose that you are a teacher with a total of 100 students 10 among them come from a disadvantaged and their average in year 1

is 80/100. All of the other students are not considered disadvantaged and have an average of 90/100. What is the overall average for your students in year 1?
Mathematics
1 answer:
IceJOKER [234]3 years ago
4 0

Answer:

  89/100

Step-by-step explanation:

The average weighted by the number of students is ...

  (90(0.90) +10(0.80))/100 = (81 +8)/100 = 89/100

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