7.3.2.3
Use proportions and ratios to solve problems involving scale drawings and conversions of measurement units.
Example Problems
A scale on a hiking map shows that 3 inches represents 1.25 miles.
What number of inches on the map represent 10 actual miles?
What number of inches on the map represent 10 actual miles?
A scale on a map shows that 3 centimeters represents 10 kilometers.
What number of centimeters on the map represents an actual distance of 25 kilometers?
What number of centimeters on the map represents an actual distance of 25 kilometers?
A scale on a hiking map shows that 1.5 inches represents 4 miles.
What number of actual miles are represented by 6 inches on the map?
What number of actual miles are represented by 6 inches on the map?
Khan Academy ResourcesScale drawing word problemsRelate scale drawings to areaInterpret scale factor in scale drawingsConstruct scale drawingsScale copiesScale drawingsIdentify scale copiesIdentifying scale copiesInterpreting scale factors in drawingsSolving a scale drawing word problemScale drawing: centimeters to kilometersIdentifying values in scale copies

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