Salina spent 100 minutes finishing her homework last night. She spent 23% of her time completing her math homework. Which model represents 23%?

Question

A grid model with 100 squares. 13 squares are shaded.
A grid model with 100 squares. 23 squares are shaded.
A grid model with 100 squares. 27 squares are shaded.
A grid model with 100 squares. 73 squares are shaded.

Answer 1

To find the model that represents 23% of Salina's time spent on math homework, we need to calculate 23% of 100 squares.

23% of 100 is: \[ \frac{23}{100} \times 100 = 23 \]

This means that 23 squares should be shaded to represent 23% of the total time.

Therefore, the correct model is: A grid model with 100 squares. 23 squares are shaded.