Question

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?

Answer 1

Answer: 2x+3

Explanation:

Kay=x

Mary is twice as old as kay so that makes her 2x

Jane is 3 years older then Mary so that makes her 2x+3

Kay=x

Mary=2x

Jane=2x+3

so that makes the answer 2x+3

Hope this helped!

Answer 2

Kay = x

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

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

Answer: 2x + 3