Alg I Unit 1 Lesson 3: Proportions & Measurements (Ch. 2. 3) Warm Up

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Alg I Unit 1 Lesson 3: Proportions & Measurements (Ch. 2. 3) Warm Up Alg I Unit 1 Lesson 3: Proportions & Measurements (Ch. 2.3) Warm Up! Solving problems using percents Ex.1) 85% of 440 guests is how many guests? Ex2.) 42 students is 70% of how many students? Ex3.) 576 meals is what percent of 1440 meals?

Everyday conversion factors What are some conversion factors that you are familiar with? Feet per mile? Centimeters per inch? Seconds per minute? Minutes per day? Check your planners!

Converting from centimeters to inches Using the relationship that 1 inch = 2.54 centimeters convert the following measurements from unit into the other. 215 centimeters = 1 centimeter = How many centimeters high is a doorway that measures 80 inches?

Using conversion factors to solve problems Jonas drove his car from Montana to Canada on vacation. While there, he heeded to buy gasoline and noticed that it was sold by the liter rather than by the gallon. Use the conversion factor 1 gallon = 3.79 liters to determine how many liters will fill his 12.5-gallon gas tank.

Using conversion factors to solve problems A radio-controlled car traveled 30 feet across the classroom in 1.6 seconds. How fast was it traveling in miles per hour?

Using conversion factors to solve problems In 2001, Alan Webb broke Jim Ryun’s 36-year-old high school mile record by running 1 mile in 3 minutes 53.43 seconds. How fast was this in feet per second?

Use dimensional analysis to answer the complete the following conversions. 50 meters per second to kilometers per hour. 0.025 day to seconds 1200 ounces to tons (16 oz. = 1 lb; 2000 lb = 1 ton)

Use dimensional analysis to answer the following question. Which is longer a 1-mile race or a 1500-meter race? Use mathematics to show your reasoning.

Metric to U.S. Customary 1 meter = 3.28 feet 1 kilometer = 0.621 miles 400 meter dash = 0.248 miles ≈ 0.5 mile 800 meters = 0.497 miles ≈ 1 mile 1 meter = 100 cm = 1,000 millimeters 1 kilometer = 1,000 meters 1 foot = 12 inches 1 yard = 36 in. = 3 ft. 1 mile = 5,280 feet = 1,760 yds.

Metric Liquid US