For this case the first thing we should do is find the percentage of people surveyed who said that pizza pizza was their favorite type of pizza.
We have then:
![x = (21/40) * (100) x = 52.5%](https://img.qammunity.org/2019/formulas/mathematics/high-school/mk5o22z1tbdplmds4sgq3cvtmcq0qrxbsu.png)
We are now looking for 52.5% of 1600 people.
For this, we make the following rule of three:
1600 ----------> 100%
x ---------------> 52.5%
Clearing the value of x we have:
Answer:
the most reasonable estimate for the number of Trinity Food Festival attendees whose favorite type of pizza is sausage pizza is:
x = 840