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const2013 [10]
3 years ago
13

Write an equation what number plus 8 equals 12?

Mathematics
2 answers:
kirza4 [7]3 years ago
7 0
8 + 4 = 12 is the equation.
raketka [301]3 years ago
6 0
8 + x = 12
8 + x - 8 = 12 - 8
x = 4
8 + 4 = 12
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Is 21,063 divisible by three? If it is, write a number as a product of three and another factor if not, explain
Zarrin [17]
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First, take any number (for this example it will be 492) and add together each digit in the number (4+9+2 = 15). Then take that sum (15) and determine if it is divisible by 3. The original number is divisible by 3 (or 9) if and only if the sum of its digits is divisible by 3 (or 9).If a number is a multiplication of 3 consecutive numbers then that number is always divisible by 3. This is useful for when the number takes the form of (n * (n - 1)*(n + 1))Example: 492 (The original number). 4 + 9 + 2 = 15 (Add each individual digit together). 15 is divisible by 3 at which point we can stop. Alternatively we can continue using the same method if the number is still too large: 1 + 5 = 6 (Add each individual digit together). 6 ÷ 3 = 2 (Check to see if the number received is divisible by 3). 492 ÷ 3 = 164 (If the number obtained by using the rule is divisible by 3, then the whole number is divisible by 3)
4 0
3 years ago
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gayaneshka [121]

Natalie

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