1. Ratio and Proportion Review
Workplace and Apprenticeship Math 20

2. Ratios

3. Review Add your first bullet point here
Add your second bullet point here
Add your third bullet point here

4. Some example’s together
In a juice mixture, 750mL of water is mixed with 250mL of juice concentrate. What is the ratio of concentrate to water? Write your answer as a fraction in lowest terms.
What do we need to know to answer this question successfully?!

5. What do we need to know to answer this question successfully?!

6. Some example’s together
To mix a certain shade of green paint, a painter mixes 2.3L of blue paint with 1.7L of yellow paint. What is the ratio of blue paint to yellow paint?

7. Your turn
Complete “Ratios & Rates” Review Worksheet – We will correct when you’re done

8. How do we solve for missing variables?!
A dirt bike requires 15L of gasoline to be mixed with 4L of oil. If your jerry-can holds 20L of gasoline, how much oil will you need to add in?

9. How do we solve for missing variables?!
If 10cm on a map represents 25km of actual ground, how many centimeters would 45km of actual ground be on the map?

10. Your turn! Quick practice (10 minutes)
1) A recipe for cookies asks for 500mL of flour, 250mL of brown sugar, and 125mL of water. In lowest terms, what is the ratio of:
Sugar to flour
Sugar to water
Water to flour and sugar together

11. Your turn! Quick practice (10 minutes)
2) The best speed for fuel consumption (highway driving) is 90km/hour. If you traveled for 3.75 hours at 90km/hr, how far have you travelled?

12. Your turn! Quick practice (10 minutes) - ANSWERS

13. Your Turn! Question Sheet
Complete both sides of “Build Your Skills – Proportions” handout. This is a review from grade 10.
This will be due: ________________