Answer: 24a + 6
Step-by-step explanation: 8 + 18a - 2 + 6a
8 - 2 =6
18a + 6a =24a
6 + 24a or 24a + 6
The answer for this is 9. 7*1+2=9
Answer:
Kim is 16 years old and her sister is 8 years old.
Step-by-step explanation:
We can use equations to represent this scenario.
Let Kim's age be 'k' and her sister's age be 's'.
Thus, k=2s (since Kim's age is double of her sister)
and k+s=24 (their ages add to 24 (from question)
Substituting the first equation:
2s+s=24
3s=24
s=8
Therefore, Kim's sister is 8 years old.
Now substitute this value into the second equation:
k+8=24
k=16
Therefore, Kim is 16 years old.
2700 (1-4%) 5. population by 2020 would be 2201
