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vichka [17]
2 years ago
9

The sum of twice a number and 12 is no less than 24

Mathematics
1 answer:
noname [10]2 years ago
3 0
The answer is 12 + 12 = 24
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Answer:

Assuming 16 and 17.  5  books in 5 shelves, do you need help making an array?  for 17, composite since you can divide the new number by either prime number, and a prime number can only be divided by 1 and itself.

Step-by-step explanation:

What are the prime numbers in between 21 and 30?  


Well all numbers are 21, 22,23,24, 25, 26, 27, 28, 29, 30.

We know right away prime numbers can't be even so now we have 21, 23, 25, 27, 29.

Fives are easy to check for too so we can get rid of 25.

21, 23, 27, 29.  Now it's pretty easy to check each one for being prime.  the prime numbers are 23 and 29.  Now, it says  taking 4 away means it can be divided up, or another way to say that is  taking 4 away beams the new number won't be prime.  taking 4 away gives us 19 and 25.  Well we know one is definitely not prime, and if you check you can see the other one is.  So 25 is our answer.

the only way 25 splits up is 5x5, so that means there are 5 books per shelf and 5 shelfs.


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Determine the perimeter of each figure.
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Number 1. 306mm

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Hi what is the answer
julia-pushkina [17]

Answer: 48 sq. cm.

Step-by-step explanation:

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= 12 x 4 = 48 sq. cm.

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