7.5 Metric–U.S. Customary Conversions and Temperature What are your objectives for Section 7.5? How can you accomplish each objective? 1 Convert Between U.S. Customary • Understand the Relationships Between U.S. Customary Units and Metric Units. • Use unit fractions to convert between units. • Complete the given examples on your own. • Complete You Trys 1 and 2. 2 Understand the Relationship Between the Fahrenheit and Celsius Scales • Learn the freezing and boiling points of water. • Use your basic knowledge relating Celsius and Fahrenheit to answer questions relating to temperature. • Complete the given example on your own. • Complete You Try 3. 3 Convert Between Fahrenheit and Celsius Units • Learn the Procedure for Converting Between Fahrenheit and Celsius Temperatures. • Complete the given examples on your own. • Complete You Trys 4 and 5. Read the explanations, follow the examples, take notes, and complete the You Trys. 1 Convert Between U.S. Customary and Metric Units Even though we use the U.S. customary system of measurement, we still come across metric units in the United States. In sports, for example, a track-and-fi eld athlete might compete in a 400-m race. How long is this in yards? A pharmacist might mix 50 mg of antibiotic in a solution for a patient in a hospital. How many ounces is this? We can use the following relationships to convert between U.S. customary units and metric units. Relationships Between U.S. Customary Units and Metric Units Length Capacity Weight (Mass) 1 inch 2.54 centimeters 1 foot 0.30 meter 1 yard 0.91 meter 1 mile 1.61 kilometers 1 cup 236.59 milliliters 1 quart 0.95 liter 1 gallon 3.79 liters 1 ounce 28.35 grams 1 pound 0.45 kilogram and Metric Units 472 CHAPTER 7 Measurement and Conversion www.mhhe.com/messersmith
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