Question

Suppose a seventh graders birthday is today, and she is 12 years old. How old was she 3 1/2 years ago? Write an equation, and use a number line to model your answer

Answer 1

Answer:

he age of girl 3 $\frac{1}{2}$ years ago is 8.5 years  .

Step-by-step explanation:

Given as :

The present age of seventh grader girl = 12 years

Let The age of her 3 $\frac{1}{2}$ years ago = x years

So The age of girl $\frac{7}{2}$ years ago = x years

Now, According to question

The age of girl 3.5 years ago = 12 - 3.5

Or,  The age of girl 3.5 years ago = 8.5 years

Hence The age of girl 3 $\frac{1}{2}$ years ago is 8.5 years  . Answer