Answer:
Step-by-step explanation:
Since the denominator is a factor of 100, we can advance the fraction by 4 / 4, and we would end up with.
Answer:
86
Step-by-step explanation:
let the numbers be x,x+2,x+4,x+6
Then x+x+2+x+4+x+6=332
4x=332-12=320
x=320/4=80
so numbers are 80,82,84,86
Doing 2 strategies at one time or in a certain order
Average=(scores total)/(number of scores)
We are given two averages and two numbers of students so we can calculate the total scores in each class..
75=Ab/40, so the sum of Abraham's class scores is 40(75)=3000 and similarly
81=An/20, so the sum of Anita's class scores is 20(81)=1620
Now we know the total score for all the students is 3000+1620=4620
And we also know that there are a total fo 40+20=60 students, so the overall average for all the students is
a=4620/60=77
