It is (21+15)/2 = 36/2 = 18
It is: 21+18+15 = 54 and 54/3 = 18 which is the mean average
It is: 14+15+22+21 = 72/4 => 18 which is the mean average
The average is 15.
The average of 6, 15 and m is (6 + 15 + m) / 3 = (21 + m)/3 = 7 + m/3
something okay how i meant to know ? :)
It is: 21+18+15 = 54 and 54/3 = 18 which is the mean average
It is: 14+15+22+21 = 72/4 => 18 which is the mean average
The average is 15.
The average of 6, 15 and m is (6 + 15 + m) / 3 = (21 + m)/3 = 7 + m/3
In the wild the average life span is 15 to 18 years. In captivity the average life span is about 15 to 21 years.
something okay how i meant to know ? :)
36 - 21 = 1536 - 21 = 1536 - 21 = 1536 - 21 = 15
35
21*15 is equal to 315 21 x 15 = 315
15
315/21 = 15, hence 15 times 21 is 315
A years earnings in the 1900's Housemaid £12 Cook £15 Governess £21 A years earnings in the 1900's Housemaid £12 Cook £15 Governess £21