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The U.S. system of measurement uses the inch, foot, yard, and mile to measure length.

U.S. System of Measurement. The U.S. system of measurement uses the inch, foot, yard, and mile to measure length. U.S. Units of Length 12 inches (in.) = 1 foot (ft) 3 feet = 1 yard ( yd) 36 inches = 1 yard 5280 feet = 1 mile (mi). Unit Fractions. Converting Between Measurements.

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The U.S. system of measurement uses the inch, foot, yard, and mile to measure length.

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  1. U.S. System of Measurement The U.S. system of measurement uses the inch, foot, yard,and mile to measure length. U.S. Units of Length 12 inches (in.) = 1 foot (ft) 3 feet = 1 yard (yd) 36 inches = 1 yard 5280 feet = 1 mile (mi) Unit Fractions

  2. Converting Between Measurements To convert from one unit of length to another, unit fractions may be used. A unit fraction is a fraction that equals 1. To convert 60 inches to feet,multiply by a unit fractionthat relates feet to inches. The unit fraction should be written so thatthe units we are converting to,feet,are in the numerator and the original units,inches,are in the denominator. Unit fraction units converting to 60 in. original units

  3. Weight Whenever we talk about how heavy an object is, we are concerned with theobject’sweight. We discuss weight when we refer to a 12-ounce box of cereal, an overweight 19-pound tabby cat, or a barge hauling 24 tons of garbage.

  4. Weight The U.S. system of measurement uses theounce, pound, and ton to measure weight. U.S. Units of Weight Unit Fractions 16 ounces (oz) = 1 pound (lb) 2000 pounds = 1 ton

  5. Mass In scientific and technical areas, a careful distinction is made between weight and mass.Weight is really a measure of the pull of gravity. The farther from Earth an object gets, the less it weighs. Mass is a measure of the amount of substance in the object and does not change. Astronauts orbiting Earth weigh much less than they weigh on Earth, but they have the same mass in orbit as they do on Earth.

  6. Mass - U.S. System The basic unit of mass in the metric system is the gram. It is defined as the mass of water contained in a cube 1 centimeter (cm) on each side. 1 cm 1 cm 1 cm A tablet contains 200 milligrams of ibuprofen. A large paper clip weighs approximately 1 gram. A box of crackers weighs 453 grams. A kilogram is slightly over 2 pounds. An adult woman may weigh 60 kilograms.

  7. Examples Use unit multipliers to convert the following: 412 feet to yards 17,200 feet to inches 412 feet to inches 48 ounces to pounds 40,000 pounds to tons

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