What percent is represented by this 20-square grid?

Question

A bar diagram with 18 shaded squares and 2 unshaded squares.

%

Answer 1

To find the percent represented by the shaded squares in a 20-square grid:

1. Count the total number of squares: 20.
2. Count the number of shaded squares: 18.
3. Calculate the percentage of shaded squares using the formula:

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

Substituting the values:

\[ \text{Percentage} = \left( \frac{18}{20} \right) \times 100 = 0.9 \times 100 = 90% \]

Therefore, the shaded squares represent 90% of the grid.