Question

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?









A.
7







B.
9







C.
8







D.
10










Question Resources

Answer 1

M = 2B + 3
M + B < 30

M = 30 - B
30 - B = 2B + 3
3B = 27

B=?

Answer 2

9

Answer 3

Correct

Answer 4

ok thanks

Answer 5

Your welcome

Answer 6

D. 10 and Welcome.

Answer 7

I failed

Answer 8

Let Brooke be x years old
Mia is 2x + 3 years old
Their total age is x + (2x + 3) = 3x + 3
Their age is less than 30, so we have:
3x + 3 < 30
3x < 27
x <9

Do you get it now?

Answer 9

yea but I still failed