A grid model with 100 squares. 9 squares are shaded.

Question

Which percent is modeled?
9%
19%
91%
99%

Answer 1

To find the percentage of shaded squares in a grid model with 100 squares, you can use the formula:

\[ \text{Percentage} = \left(\frac{\text{Number of shaded squares}}{\text{Total number of squares}}\right) \times 100 \]

In this case, the number of shaded squares is 9 and the total number of squares is 100.

So,

\[ \text{Percentage} = \left(\frac{9}{100}\right) \times 100 = 9% \]

Therefore, the correct answer is 9%.