Msfriesensclassroom.weebly.com



Gr. 8 MathUnit 5 – Ratio & RateLesson 3Student Copy8.N.4 – Comparing RatiosLesson Focus:To use different strategies to compare ratios. Investigate40957519431000In which recipe is the punch stronger? Or are the drinks the same strength? Explain how you know.537210048704500Ex. 1Erica makes her coffee with 2 scoops of coffee to 5 cups of water. Jim makes his coffee with 3 scoops of coffee to 7 cups of water. Find out whose coffee is stronger. Ex. 2The recommended seeding on a package of grass seed is 200 g per 9 m2. Carey spread 150 g over 6.5 m2. Is this more than, equal to, or less than the recommended seeding? How do you know?4657725254000Ex. 3a. Write each part-to-part ratio as a part-to-whole ratio.2:3_____ii.4:3_____b. Write each part-to-whole ratio in part a in fraction form. Which part-to-whole ratios is greater?Ex. 4A contractor brought 2 shades of yellow paint for his clients to see. Shade 1 is made by mixing 5 cans of yellow paint with 3 cans of white paint. Shade 2 is made by mixing 7 cans of yellow paint with 4 cans of white paint. The clients want the lighter shade. Which shade should they choose? What assumptions do you make? Could you use percents to solve? If so, show how.495300013017500Assignment: Do #6 – 19 p. 284 ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download