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Mathematics 7 Online
OpenStudy (anonymous):

Mia is three years older than twice her sister Brooke’s age. The sum of their ages is less than 30. What is the greatest age Brooke could be? (Points : 1) 7 8 9 10

OpenStudy (nicole143):

I think it may be 9. If you have one girl who is twice the age of her sister, plus three years, and it has to 30. You could do 9 x 2 = 18 then 18 + 3 = 21 then 21 + 9 = 30?

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