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4-5 Customary Measurements Warm Up Simplify. 4 16 1. 6868 3. 9 16 2. 14 16 4. 1414 9 16 3434 7878

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4-5 Customary Measurements Learn to identify and convert customary units of measure.

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4-5 Customary Measurements 3 applesPound (lb) BuffaloTon Water in 2 tablespoonsFluid ounce (fl oz)Capacity Standard measuring cupCup (c) Large milk jugGallon (gal) Slice of breadOunce (oz)Weight 4 laps around a trackMile (mi) Standard sheet of paperFoot (ft) Small paper clipInch (in.)Length Customary Unit

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4-5 Customary Measurements Example 1 Choose the most appropriate customary unit for each measurement. Justify your answer. A. the weight of a car tons; The weight of a car is similar to the weight of a buffalo. inches; The diameter of a soup can is similar to the length of a few paper clips. pounds; The weight of a newborn baby is similar to the weight of more than a dozen apples. B. the diameter of a soup can C. the weight of a newborn baby

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4-5 Customary Measurements Example 2 Choose the most appropriate customary unit for each measurement. Justify your answer. A. the length of a pen top inch; The length of a pen top is similar to the length of a small paper clip. pounds; The weight of a pitcher of juice is similar to the weight of about 10 apples. cups; The capacity of a jar of peanut butter is similar to the capacity of 2 standard measuring cups. B. the weight of a pitcher of juice C. the capacity of a jar of peanut butter

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4-5 Customary Measurements 12 inches (in.)= 1 foot (ft) 3 feet = 1 yard (yd) 5,280 feet = 1 mile (mi) 1,760 yards = 1 mile (mi) Length 16 ounces (oz) = 1 pound (lb) 2000 pounds = 1 ton Weight 8 fluid ounces (fl oz) = 1 cup (c) 2 cups = 1 pint (pt) 2 pints = 1 quart (qt) 4 quarts = 1 gallon (gal) Capacity

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4-5 Customary Measurements Example 3 Convert 5,000 pounds to tons. Use a Proportion. = pounds tons 2,000 1 Write a proportion using a ratio of equivalent measures. 2,000 x = 1 5,000 2000x = 5,000 5,000 m x x = 2.5 5,000 pounds is equal to 2.5 tons.

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4-5 Customary Measurements Example 4 Convert 24 pints to cups. Use a Proportion = cups pints 2121 Write a proportion using a ratio of equivalent measures. 1 c = 2 24 c = 48 c 24 24 pints is equal to 48 cups.

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4-5 Customary Measurements Example 5 Allison orders a 6-ounce grilled chicken sandwich. Dominic orders a quarter-pound grilled chicken sandwich. Which sandwich weighs more? Explain. = ounces pounds 16 1 First convert a quarter-pound to ounces. x = 4 oz x.25 Write a proportion using 16 oz = 1 lb. Allison’s sandwich weighs more because Dominic’s sandwich is only 4 oz.

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