Answer:
The answer is B) 6 years
Step-by-step explanation:
First of all, build an equation. With the given problem, you can come up with:
s + c = 16
In which interprets that both their ages summed up are 16. Secondly,:
s = c + 4
After you will use the typical system of equations to solve. So, plug in the second equation to the first, where s will become c + 4, and the equation is now:
c + 4 + c = 16
And finally, solve for Charmaine's age.
2c + 4 = 16
-4 -4
-----------------
2c = 12
c = 6
