Steps:
1. Do a proportion
2/3 times x/12
2. Do 12 times 2=24
3. Divide 24 by 3
4. Your answer is 8 girls
Or you could do it this way
Steps:
1. You could have just multiplied the 2 by a 4 to get 8.12 boys divided by 3 boys is 4. That means you multiple the two by 4 to get the girls.
1) let say a + b = -16
than 3times larger equal smaller can be represent by 3a = b.
now sub 3a into the b of the equation and simplify you will get 4a = -16 where a = -4 and a is the larger nymber since b will =-12 which is smaller than a