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The average of six numbers is 19 A seventh number is added and the new average is 20 What is the seventh number?
The sum of the first six numbers is (6 x 19) = 114
The sum of the new group of seven numbers is (7 x 20) = 140
The seventh number is (140 - 114) = 26.
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The seventh number contains enough material to make itself 20
and also to raise each of the previous six numbers from 19 to 20.
Therefore it must be [ 20 + (6 x 1) ] = (20 + 6) = 26.
What else can I help you with?
What is the numbers when the sum of four numbers is 24. And another number is added their average becomes 7?
31
How do you find the average in numbers?
Add the numbers then divide the sum by the number of numbers you added e.g. average of 1,2,3,4 four numbers add em up 1+2+3+4 =10 divide the sum by the number of numbers 10/4 average of 1,2,3,4 is 2.5
How do you find the average when there are even numbers?
No difference. Add them all up and divide by the number of items you added together.
What is the average of 0.85 and 0.89?
first add 0.85 and 0.89!then divide by the number by the numbers you added!so it is 0.87!
What are the answer for the average of 7 11 and 21?
To find the average, add up all the numbers and then divide the sum by the number of numbers you added. 7+11+21=39 39/3=13 The average is 13.
The average of 6 numbers is 8 A seventh number is added and the new average is 10 What number was added?
The total of the 6 numbers is 48 (6x8) Adding another number will take the total to 7. So with an average of 10, the total of the 7 numbers will be 70 (7x10) 70 - 48 = 22 which is our seventh number.
The average of six numbers is 87 A seventh number is added and the average becomes 90 The number that was added was?
177
The average of nine numbers are 40 If 1 is added to the number 2 is added to the second number 3 is added to the third number and so on up to the ninth number what is the new average?
45 will be the average...
How do a find a average?
add up all the numbers and then divide that number by the number of numbers that you added up.
What is the average of 27.352?
It is not possible to find out the average of a number without knowing how many numbers were added together to get said number. If there were say, 7 numbers added together to get the total of 27.352, then you would divide 27.352 by 7 to get the average.
What is the numbers when the sum of four numbers is 24. And another number is added their average becomes 7?
31
In math what is a mean of a number?
The mean of numbers is the average. To find this, first add all the numbers, then divide by how many numbers you added.
What is the average if the average of 9 numbers is 40 when 1 is added to the first number 2 to the second number 3 to the third number and so on up to the ninth number What is the average?
45
How do find the average?
An average is found by adding all the relevant numbers together, and then dividing by the number of numbers added. This is a concept learned in elementary school.
The average of nine numbers are 40 If 1 is added to the first number 2 is added to the second number 3 is added to the third number and so on up to the ninth number what is the new average?
In total, we are changing the sum of the 9 numbers by 1 + 2 + ... + 9 = 9 x 10 / 2 = 45, so each of the numbers is increased by, on average, 45/9=5. If the old average was 40, the new one is 40 + <the average amount each number was increased by> = 40 + 5 = 45.
How do you find the average in numbers?
Add the numbers then divide the sum by the number of numbers you added e.g. average of 1,2,3,4 four numbers add em up 1+2+3+4 =10 divide the sum by the number of numbers 10/4 average of 1,2,3,4 is 2.5
What doen mean mean?
mean means the average or all the numbers in the set added together and then divided by the number of numbers in the set of numbers.
