3 years ago

Express using algebra. Jane is 3 years older than Mary, and Mary is twice as old as Kay. If Kay is x years old, how old is Jane?

Mathematics

1 answer:

krok68 [10]3 years ago

5 0

Kay = x

Mary is twice as old as Kay
⇒ Mary = 2x

Jane is 3 years older than Mary
⇒ Jane = 2x + 3

Answer: 2x + 3

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