To find thrice the difference of 20 and 11, we first calculate the difference between 20 and 11, which is 20 - 11 = 9. Then, we multiply this difference by 3 to get the final answer: 9 x 3 = 27. Therefore, thrice the difference of 20 and 11 is 27.
3 + 6 + 9 = 18/3 = 6 The average of the three values is therefore 6.
3 9 4 5 25 20 21 441 ?
20 is divisible by 2, 5 and 10. It is not exactly divisible by 3 or 9.
10+14+9=33 average=33\3=11
You cannot. It should be their weighted average with the weights representing the number of observations in each average.For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...You cannot. It should be their weighted average with the weights representing the number of observations in each average.For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...You cannot. It should be their weighted average with the weights representing the number of observations in each average.For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...You cannot. It should be their weighted average with the weights representing the number of observations in each average.For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...
5. 3+6+9+2 = 20 20 / 4 = 5. To calculate the average of a series of numbers you have to add them together and divide them by the amount of numbers given.
11+9=20 20/2=10 average:10
Average = (9 + 31)/2 = 40/2 = 20
Average = sum(X)/n = 60/3 = 20
The LCM is 180.
To find thrice the difference of 20 and 11, we first calculate the difference between 20 and 11, which is 20 - 11 = 9. Then, we multiply this difference by 3 to get the final answer: 9 x 3 = 27. Therefore, thrice the difference of 20 and 11 is 27.
9 over 20. 9/20
The LCD for 3/20 and 9/4 is 20
20 = 3 + 8 + 9
3 to the 2nd power plus 5 x 4 - 9 = 20 32 + 5 x 4 - 9= 9 + 20 - 9= 20
-3 + 9= 6. 6 - 20=-14. Therefore the answer is -14.