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wlad13 [49]
3 years ago
14

-12 + ( ) = 9 whats the missing number

Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
7 0

Answer:

The missing number is 21

Step-by-step explanation:

-12 + x = 9

x = 9 + 12

x = 21

erastovalidia [21]3 years ago
3 0

Answer:

21

Step-by-step explanation:

let X = ( )

-12 + X = 9

X = 9 + 12

X = 21

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Show how the perfect numbers 6 and 28 were generated. Show the aliquot parts of 6 and 28
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Step-by-step explanation:

Perfect number is the positive integer which is equal to sum of proper divisors of the number.

Aliquot part is also called as proper divisor which means any divisor of the number which isn't equal to number itself.

<u>Number : 6 </u>

Perfect divisors / Aliquot part = 1, 2, 3

Sum of the divisors = 1 + 2 + 3 = 6

Thus, 6 is a perfect number.

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Perfect divisors / Aliquot part = 1, 2, 4, 7, 14

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Answer:

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Step-by-step explanation:

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