Ratio and Proportion Review Workplace and Apprenticeship Math 20

Ratios

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

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?!

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

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?

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

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?

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?

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

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?

Your turn! Quick practice (10 minutes) - ANSWERS

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