required that there must be chaperones for every 25 how many chaperones must there be for 80 students

6 chaperones on 80 students.

Step-by-step explanation:

Here is the complete question: School guideline required that there must be 2 chaperones for every 25 students on a school trip. how many chaperones must there be for 80 students?

Given: There must be 2 chaperones on every 25 students.

Now, we will use unitary method to solve.

We know 2 chaperones = 25 students

∴ one student required

Next for 80 students, we require=

∴ For 80 students, we require , however, we cannot use decimal for number of person, so we can round off the number to 6 chaperones on every 80 students.

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)

5.7622

step-by-step explanation:

the ten thousandths place is the 2. you round it up if, that number in whatever place is 5 or higher.