Unit Conversions. 24-May-15UnitConversions.ppt 2 What You Will Learn: How to pick and chose a unity multiplier that will help you convert from one unit.

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Presentation transcript:

Unit Conversions

24-May-15UnitConversions.ppt 2 What You Will Learn: How to pick and chose a unity multiplier that will help you convert from one unit of measure to another unit of measure.

Unit Conversions 24-May-15UnitConversions.ppt 3 Recall that a number multiplied by its inverse is equal to 1, which is the multiplicative inverse property of Real Numbers. b  1 / b = 1 b / b = 1 b = b Now that we are past the obvious, let us use numbers to help illustrate how this concept can help us solve problems.

Unit Conversions 24-May-15UnitConversions.ppt 4 How many feet are in a statute mile? 5,280 feet

Unit Conversions 24-May-15UnitConversions.ppt 5 Mathematically, this means that 5,280 feet = 1 mile This is an equation like any other equation. Suppose I divide both sides by 1 mile. Then, 5,280 feet 1 mile = 1 We could just as easily have divided by 5,280 feet to get 1 mile 5,280 feet = 1

Unit Conversions 24-May-15UnitConversions.ppt 6 How would you find the number of yards in a mile? All you know is 5,280 feet/mile and 3 feet/yard. This looks like 5,280 feet 1 mile = 1 1 yards 3 feet = 1 times 5,280 feet 1 mile = 1  1 1 yards 3 feet 

Unit Conversions 24-May-15UnitConversions.ppt miles  5280 ft / 1 mile  12 inch / 1 ft  2.54 cm / 1 inch  1 meter / 100 cm = meters Convert the Following: 1.25 miles to meters 60 mph to meters / second 60 miles / 1 hr  5280 ft / 1 mile  12 inch / 1 ft  2.54 cm / 1 inch  1 meter / 100 cm = 96, meters / hr 96, meters / hr  hr / 3600 seconds = meters / seconds Use the TAKS Formula Charts to Help You

Unit Conversions 24-May-15UnitConversions.ppt 8 That’s it!

Unit Conversions 24-May-15UnitConversions.ppt 9 What You Have Learned: How to pick and chose a unity multiplier that will help you convert from one unit of measure to another unit of measure.

Unit Conversions 24-May-15UnitConversions.ppt 10 End of Line