The ratio of Sunita’s age to Mark’s age is currently 3 to 4, and in 12 years, it will be 5 to 6. What is Mark’s current age?
1 answer:
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Answer:
x = ± 2i
Step-by-step explanation:
note that = i
x² = - 12 ( take square root of both sides )
x = ± = ±
= ± 2i