CHAPTER Ratios, Rates, and Proportional Reasoning

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Name: _____________________________________________________Date: ______________13. Compare the heights of objects to their shadows.a) A 20-m building casts a 12-m shadow.What is the height of a tree with a shadow that is 3 m long?20 mShadowShadow12 m 3 mbuilding heightshadow heighttree height=shadow height=Sentence: _________________________________________________________________b) A building with a height of 25 m has a shadow 8 m long.What is the height of a pole with a shadow 4 m long?Draw a diagram:Proportion:Sentence: _________________________________________________________________92 MHR ● Chapter 2: Ratios, Rates, and Proportional Reasoning
Name: _____________________________________________________Date: ______________2 Practice TestFor #1 to #4, circle the best answer.1. The ratio of Jared’s stamps to Paulo’s stamps is 4 : 7.Jared has 36 stamps.How many stamps does Paulo have?Set up a proportion:Jared's stampsPaulo's stampsA 21 B 63C 84 D 992. A robot can make 27 toy cars in 9 min.Which is the unit rate?A 27 cars/9 min B 3 carsC 3 cars per minD13 car/min3. In the school choir, the ratio of girls to boys is 17 : 8.What percent of the choir are boys?A 17% B 25%C 32% D 47%4. Look at the figure. What is the ratio of 2-digit numbers in theblack hexagon compared to the total number of 2-digit numbers?Write your answer in lowest terms.First, find the totalnumber of students.18 20 22 2419 21 23 2529 31 33 3530 32 34 36A 3 : 8 B 8 : 3C 6 : 16 D 16 : 6Complete the sentences in #5 and #6.5. There are 30 g of sugar in 200 mL of pop.There is 300 g of sugar inL of pop.g sugar g sugar=mL pop popChange youranswer to litres.Practice Test ● MHR 93
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CHAPTER Ratios, Rates, and Proportional Reasoning

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