Question

There are 4 classrooms of third grade and 4 of fourth grade at our school. Each classroom has 20 students. She knows the following information:
·90% of 3rd and 4th grade students have permission to go on the trip.
·4 teachers are going on the trip
·The school requires 1 parent volunteer for every 8 students going on the trip.

Part A: How many parent volunteers are needed to go on the trip?

Part B: All of the students, teachers, and parents going on the trip ride in school buses that hold 44 people. How many school buses should Mrs. Horan reserve?​

Answer 1

Answer: 18 parent volunteers and 4 buses.

Step-by-step explanation: In order to solve this problem you must first calculate how many student will be going on the trip.

There are 8 classes of 20 students and 90% are attending, so the formula is 8 x 20 x .9 = 144 students are going.

Part A: If one parent needs to go for each 8 students you need to divide 144 by 8 = 18 parent volunteers.

Part B: The total people attending are 144 students, 18 parent volunteers and 4 teachers is a total 166 total attending to ride the bus. You need to divide 166 people by 44 on each bus = 166/44 = 3.7 buses, so they need to reserve 4 buses.