Answer: There are 385 students and teachers who rode to the zoo in buses and 24 students and teachers who rode to the zoo in trains.
Step-by-step explanation:
Since we have given that
Total number of students and teachers = 409
Let the number of vans be x
Let the number of buses be x+5
Number of students and teachers each bus transported = 55
Number of students and teachers each van transported = 12
According to question,

Total number of students and teachers who rode to the zoo in buses will be

Total number of students and teachers who rode to the zoo in vans will be

Hence, there are 385 students and teachers who rode to the zoo in buses and 24 students and teachers who rode to the zoo in trains.
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Midpoint Formula:

Step-by-step explanation:
<u>Step 1: Define</u>
<em>Find points from graph.</em>
Point (-3, 1)
Point (1, -4)
<u>Step 2: Find Midpoint</u>
Simply plug in your coordinates into the midpoint formula to find midpoint
- Substitute [MF]:

- [Fractions] Add/Subtract:

- [Fractions] Divide:

Divide 75 by 2:
75 / 2 = 37.5
Now you need the whole number below 37.5 and the whole number above 37.5:
37 + 38 = 75
The numbers are 37 and 38
1 step: Place the point of the compass on point M and draw an arc, making sure the width of the compass opening is greater than 1/2MN.
2 step: Place the point of the compass on point N and draw an arc that has the same radius as previous one.
3 step: Connect two points of intersection of drawn arcs. Obtained line will be bisector.
Answer: option D.