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mel-nik [20]
3 years ago
6

When the positive integer n is divided by 7, the remainder is 2. What is the remainder when 5n is divided by 7?

Mathematics
1 answer:
ser-zykov [4K]3 years ago
6 0

Therefore the reminder is 3 when 5n is divided by 7.

Step-by-step explanation:

we know that

Dividend = quotient × Divisor +Reminder

⇔ n = Q(n) × 7 + 2          [ let Q(n)  is quotient]

multiplying by 5 both sides

5n = 5 Q(n) ×7 + 2×5

⇔5n = 5 Q(n) ×7 +10

⇔5n=  5 Q(n) ×7 +7 +3

⇔ 5n = (5Q(n) +1) × 7 +3

Therefore the reminder is 3 when 5n is divided by 7.

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Answer:

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Step-by-step explanation:

The distance between two points can be found by using the formula

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From the question the points are

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The distance between them is

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We have the final answer as

8.9 units to the nearest tenth

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