Unit 2 - Introduction to Ratios - Practice Day 2

Problem 1

The city of Metropolis requires that for every 15 standard parking spaces, there are 3 van accessible spaces. The new library will have 54 parking spaces. How many will need to be van accessible?

Problem 2

The city of Metropolis requires that for every 15 standard parking spaces, there are 3 van accessible spaces. The new park will have 72 parking spaces. How many will need to be van accessible?

Problem 3

In one year, a colony of bees produces 0.4 kg of honey for every 2,500 bees. A small bee colony has approximately 20,000 bees. How much honey can the bee colony produce in one year?

Problem 4

In one year, a colony of bees produces 0.4 kg of honey for every 2,500 bees. How many bees would a farmer need in order to produce 2 kg of honey in one year?

Problem 5A

A teacher is planning a class trip to the aquarium. The aquarium requires 2 adult chaperones for every 15 students. Suppose 75 sixth graders go on the trip.

a. How many chaperones are needed?

Problem 5B

A teacher is planning a class trip to the aquarium. The aquarium requires 2 adult chaperones for every 15 students. Suppose 75 sixth graders go on the trip..

b. How many tickets should the teacher purchase altogether?

Problem 6A

A teacher is planning a class trip to the zoo. The zoo requires 3 adult chaperones for every 21 students. Suppose 84 seventh graders go on the trip.

a. How many chaperones are needed?

Problem 6B

A teacher is planning a class trip to the zoo. The zoo requires 3 adult chaperones for every 21 students. Suppose 84 seventh graders go on the trip.

b. How many tickets should the teacher purchase altogether?

Problem 7

Camila is training for a triathlon race. Camila’s watch recorded that she ran 2 kilometers in 15 minutes on Monday, and 3 kilometers in 20 minutes on Tuesday. She ran at a constant speed both days. Is her ratio of kilometers to speed the same on both days?

• Yes

• No

Problem 8

Camila is training for a triathlon race. Camila’s watch recorded that her heart beat 90 times in 30 seconds while biking, and 70 times in 20 seconds while swimming. Which activity made Camila’s heart beat faster?

• Biking

• Swimming