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lora16 [44]
3 years ago
11

If Nina is N years old now and Maryna is M years old now, write… Four years ago, Nina was three times as old as Maryna was.

Mathematics
1 answer:
almond37 [142]3 years ago
3 0

Answer:

N - 4 = 3(M - 4). Simplified further, N - 4 = 3(M - 4)

Step-by-step explanation:

Given,

Nina is N years old now and;

Maryna is M years old now

If four years ago, Nina was three times as old as Maryna was, then

Four years ago, Nina's age was N - 4

Four years ago, Maryna's age was M - 4

Given that Nina was three times as old as Maryna was four years ago, it means that

N - 4 = 3(M - 4)

To solve further

N = 3m - 12 + 4

N = 3M - 8

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