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The sum of a number and 9 is -30. find the number?
39
What is the Sum of 16?
The sum of 16 refers to the result of adding 16 to another number or set of numbers. In this case, if we are only considering the number 16 by itself, the sum would be 16. However, if we are adding 16 to another number, the sum would depend on the value of the other number being added.
If 9 is subtracted from two-thirds of a number the result is 7. Find the number.?
⅔ a number - 9 = 7 → ⅔ a number = 7 + 9 = 16 → the number is 16 × 3/2 = 24.
What is the divisibility rule for 9?
If you add up the digits, and the sum is divisible by 9 or a multiple of 9.* * * * *For really big numbers you may need to find the digital root (sum of digits) of the digital root.The divisibility rule for 9 is that the sum of the digits of a number must add up to 9 or a multiple of 9.For example, is 81 divisible by 9? Lets find out! 8+1=9. Then it is divisible by 9.
How do you find the sum of something?
the sum is the answer to an addition problem e.g.4+5=9 9 is the sum
