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14 Cards in this Set
- Front
- Back
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formula
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a rule for the relationship between certain quantities
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solve an equation
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to find the value of the variable that makes the equation true
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equivalent equations
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have the same solution
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multi-step equations
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an equation the requires more than one step
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identities
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equations that are true for all of the variables
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ratio
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a comparison of two numbers by division
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proportion
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an equation starting that two ratios are equal
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rate
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the ratio of two measurements having different units of masure
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unit rate
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a rate that tells how many of one item is being compared to one of another item
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scale model
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a three dimensional reproduction of an item that has been reproduced or increased in size proportionaly
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percent of change
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the ratio of the change in amount to the original amount expressed as a percent
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literal equation
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a formula or equation that involves several variables
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dimensional analysis
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the process of carrying units throughout a computation
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weighted average
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the product of the number of units and the value per unit divided by the sum of the number of units
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