Answer:
12 pieces.
Step-by-step explanation:
Let x be the number of pieces we need to shade.
We have been given that a diagram of triangle that is made of smaller, identical pieces. We are asked to find the number of pieces that we need to shade the 75% of our given bigger triangle.
We can see that our bigger triangle is made of 16 smaller triangle. To find the number of pieces we need to shade, we need to figure out x such that 75% of 16 equals x.
[tex]x=\frac{75}{100}\times 16[/tex]
[tex]x=0.75\times 16[/tex]
[tex]x=12[/tex]
Therefore, we will shade 12 pieces to model our given percent.
