Answer:
200 students must agree to attend in order for the school to have the festival.
Step-by-step explanation:
200 is 40% of 500. We can also use fractions to figure this out.
[tex]\frac{40}{100} =\frac{x}{500}[/tex]
For 100 to become 500 it must be multiplied by 5. And whatever we do to the denominator we have to do to the numerator. So we multiply 40 × 5 = x
x = 200
[tex]\frac{40*5}{100*5} = \frac{x}{500}[/tex]
[tex]\frac{40}{100} =\frac{200}{500}[/tex]