Ratio Mixer — Worksheet

Ratio Mixer

Worksheet

Open the Ratio Mixer module and set the red and blue parts as described in each question. Use what you see on the module to answer below.

Name: Date:

Part A: Reading the ratio

1. With red parts = 3 and blue parts = 2, which ratio does the module display? 1 pt
  • 2 : 3
  • 3 : 2
  • 5 : 2
  • 3 : 5
2. For a 3 : 2 mixture, what fraction of the whole mixture is red? Give your answer as a decimal to two places. 1 pt
Answer:
3. Which of these ratios is equivalent to 3 : 2? 1 pt
  • 6 : 4
  • 2 : 3
  • 3 : 4
  • 4 : 6

Part B: Working with the module

4. Set red parts = 4 and blue parts = 1. How many total parts are in the mixture? 1 pt
Answer:
5. For the 4 : 1 mixture, what fraction of the whole is red? Give your answer as a decimal. 1 pt
Answer:
6. Select every setting that makes the mixture exactly half red. 2 pts
  • 1 red : 1 blue
  • 2 red : 2 blue
  • 3 red : 1 blue
  • 50 red : 50 blue
7. Describe what happens to the mixed color as you increase the red parts while keeping the blue parts fixed. 2 pts

Part C: Reasoning

8. Compare the 1 : 1 mixture with the 1 : 4 mixture. How does the amount of red change, and why? 2 pts
9. How many parts of blue must be mixed with 3 parts of red to make a 3 : 5 (red : blue) mixture? 1 pt
10. In a 3 : 5 mixture, what decimal fraction of the whole is blue? Round to three places. 1 pt
Answer: