Mean=total/the number of values =>total=mean*the number of values
the total of the first set of 8 numbers is : total=8*8=64
the total of the second set of 12 numbers is: 12m
the total of the 20 numbers is: 64+12m
the mean of the 20 number is: (64+12m)/20=5
solve for m: 64+12m=100
12m=36
m=3
Answer:
the answer is -5. you could really just use a calculator this is pretty basic math.
Step-by-step explanation:
Answer:
762
Step-by-step explanation:
14.86 is the answer to this question
