Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy (English)

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Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy
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Lecture Description of this above Topic:

Lecture 1: Unit conversion: gallons to quarts, pints, and cups

Lecture 2: Converting yards into inches

Lecture 3: Unit measurement word problem: running laps (US customary)

Lecture 4: Applying the metric system

Lecture 5: Multi-step unit conversion word problem

Lecture 6: Introduction to ratios

Lecture 7: Converting pounds to ounces

Lecture 8: Ratios as fractions in simplest form

Lecture 9: Unit measurement word problem: volume (US customary)

Lecture 10: Solving ratio problems with tables example 1

Lecture 11: Converting Fahrenheit to Celsius

Lecture 12: Conversion between metric units

Lecture 13: Unit conversion word problem: drug dosage

Lecture 14: Multiple rates word problem

Lecture 15: Proportion validity example

Lecture 16: Ratio word problem: boys to girls

Lecture 17: Solving unit rates problem

Lecture 18: Comparing Celsius and Fahrenheit temperature scales

Lecture 19: Speed translation

Lecture 20: Solving unit price problem

Lecture 21: Solving ratio problems with graph

Lecture 22: Unit measurement word problem: weight (US customary)

Lecture 23: Unit conversion: arithmetic calculations on units of volume

Lecture 24: Unit conversion word problem: yards to inches

Lecture 25: Solving ratio problems with tables example 2

Lecture 26: Finding average speed or rate

Lecture 27: Simplifying rates and ratios

Lecture 28: Perimeter and unit conversion

Lecture 29: Ratio word problem: centimeters to kilometers

Lecture 30: Converting within the metric system

Lecture 31: Unit conversion within the metric system

Lecture 32: Unit conversion word problem: roadtrip

Lecture 33: U.S. customary and metric units