Lesson QuizzesAlgebraic Expressions 1-1 Evaluating Preview 5-1: Ratios 5-2: Rates and Unit Rates 5-3: Proportions 5-4: Dimensional Analysis 5-5: Similar Figures 5-6: Indirect Measurement 5-7: Scale Drawings and Scale Models Holt CA Course 2 5-1 1-1Ratios Evaluating Algebraic Expressions Lesson Quiz: Part I Write each ratio in simplest form. 1 1. 22 tigers to 44 lions 2 30 2. 5 feet to 14 inches 7 Find two ratios that are equivalent to each given ratio. 3. 4 15 4. 8 21 Holt CA Course 2 Possible answer: 8 , 12 30 45 Possible answer: 16 , 24 42 63 5-1 1-1Ratios Evaluating Algebraic Expressions Lesson Quiz: Part II Simplify to tell whether the ratios are equivalent. 5. 16 and 32 8 = 8; yes 20 5 5 10 6. 36 and 28 18 24 3 14 ; no 2 9 7. Kate poured 8 oz of juice from a 64 oz bottle. Brian poured 16 oz of juice from a 128 oz bottle. Are the ratios of poured juice to starting amount of juice equivalent? 8 and 16 ; yes, both equal 1 8 64 128 Holt CA Course 2 5-2 and Unit Rates 1-1Rates Evaluating Algebraic Expressions Lesson Quiz: Part I 1. Meka can make 6 bracelets per half hour. How many bracelets can she make per hour? 12 2. A penny has a mass of 2.5 g and a volume of approximately 0.360 cm3. What is the approximate density of a penny? ≈ 6.94 g/cm3 Estimate each unit rate. 3. $2.22 for 6 stamps $0.37 per stamp 4. 8 heartbeats in 6 seconds 1.3 beats/s Holt CA Course 2 5-2 Rates and Algebraic Unit Rates 1-1Ratios, Evaluating Expressions Lesson Quiz: Part II Find each unit price. Then tell which has the lower unit price. 5. A half dozen carnations for $4.75 or a dozen for $9.24 a dozen 6. 4 pens for $5.16 or a ten-pack for $12.90. They cost the same. Holt CA Course 2 5-3 1-1Proportions Evaluating Algebraic Expressions Lesson Quiz: Part I Tell whether the ratios are proportional. ? 16 yes 1. 48 = 42 14 ? 3 2. 40 = no 15 4 3. The ratio of violins to violas in an orchestra is 5:3. t The orchestra has 9 viola players. How many t violinists are in the orchestra? 15 4. Two weights are balanced on a fulcrum. If a 6 lb weight is positioned 1.5 ft from the fulcrum, at what distance from the fulcrum must an 18 lb weight be placed to keep the weights balanced? 0.5 ft Holt CA Course 2 5-3 1-1Proportions Evaluating Algebraic Expressions Lesson Quiz: Part II 5. An elevator travels 342 feet as it goes from the lobby of an office building to the top floor. It takes 7 seconds to travel the first 133 feet. If the elevator travels at the same rate, how much longer does it take to reach the top floor? 11 s Holt CA Course 2 5-4 Analysis 1-1Dimensional Evaluating Algebraic Lesson Quiz Expressions 1. You drive 136 miles from your house to your aunt’s house at the lake. You use 8 gallons of gas. How many yards does your car get to the gallon? 29,920 yd gal 2. A cheetah was timed running 200 yards in 6 seconds. What was its average speed in miles per hour? ≈ 68 mi/h Holt CA Course 2 5-5 Figures 1-1Similar Evaluating Algebraic Expressions Lesson Quiz Use the properties of similar figures to answer each question. 1. Which rectangles are similar? A and B are similar. 2. Karen enlarged a 3 in. wide by 5 in. tall photo into a poster. If the poster is 2.25 ft wide, how tall is it? 3.75 ft 3. A rectangular house is 32 ft wide and 68 ft long. On a blueprint, the width is 8 in. Find the length on the blueprint. 17 in. Holt CA Course 2 5-6 Measurement 1-1Indirect Evaluating Algebraic Lesson Quiz Expressions 1. Vilma wants to know how wide the river near her house is. She drew a diagram and labeled it with her measurements. How wide is the river? 7.98 m w 5m 7m 5.7 m 2. A yardstick casts a 2 ft shadow. At the same time, a tree casts a shadow that is 6 ft long. How tall is the tree? 9 ft Holt CA Course 2 5-7 Drawings and Scale ModelsExpressions 1-1Scale Evaluating Algebraic Lesson Quiz 1. Using a 1 in. = 1 ft scale, how long would a 4 drawing of a 22 ft car be? 5.5 in. 2. What is the scale of a drawing in which a 9 ft wall is 6 cm long? 1 cm = 1.5 ft 3. The height of a person on a scale drawing is 4.5 in. The scale is 1:16. What is the actual height of the person? 72 in. Holt CA Course 2