Sophia's age is twice of her brother and the sum of their is 18. What is the age of sophia and her brother?
the sum of a number and 4 is eqal to 12 less 5 what is the number?
Well, well, well, if Sophia's age is twice her brother's age, then Sophia must be carrying the weight of the world on her tiny shoulders! Let's call her brother's age "x," which means Sophia's age is 2x. According to the sum of their ages being 18, we can write an equation: x + 2x = 18. Adding like terms, we get 3x = 18. After some calculations, we find that x = 6. So, Sophia's brother is 6 years old, while Sophia, the mature little soul, must be 12 years old!
Let's set up equations based on the given information.
Let's assume Sophia's brother's age is x.
Therefore, Sophia's age is 2x, as it is twice her brother's age.
The sum of their ages is 18, so we can write the equation as:
x + 2x = 18
Combining the like terms, we have:
3x = 18
Dividing both sides of the equation by 3, we get:
x = 6
So, Sophia's brother's age is 6.
And Sophia's age is twice that, so Sophia's age is 2*6 = 12.
Therefore, Sophia's age is 12 and her brother's age is 6.
To solve this problem, let's break it down into parts:
Let x be the age of Sophia's brother.
According to the problem, Sophia's age is twice that of her brother. So, Sophia's age would be 2x.
The sum of their ages is given as 18. Therefore, the equation can be written as:
x + 2x = 18
Combining like terms:
3x = 18
To find the value of x, we divide both sides of the equation by 3:
3x/3 = 18/3
x = 6
So, the age of Sophia's brother is 6.
To find Sophia's age, we substitute the value of x back into the equation:
Sophia's age = 2x = 2*6 = 12.
Therefore, Sophia is 12 years old and her brother is 6 years old.
s + 2s = 18
3s = 18