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MaRussiya [10]
3 years ago
8

When the positive integer x is divided by 9, the remainder is 5. What is the remainder when 3x is divided by 9?

Mathematics
1 answer:
NARA [144]3 years ago
3 0

Answer:

6

Step-by-step explanation:

Let n represent the quotient of the number.

We have been given that when the positive integer x is divided by 9, the remainder is 5. We can represent this information in an equation as:

x=9n+5

When 3x is divided by 9:

3x\Rightarrow 3(9n+5)

27n+15

Now, we need to break 15 into two numbers as:

27n+9+6

Now, we will factor out 9 as:

9(3n+1)+6

Therefore, the remainder will be 6.

   

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