correlationA pattern where two quantities tend to change together: both rise, or one falls as the other rises. It does not prove that one causes the other.
You’ll leave with these skills
01Find a sale price from the original price, or the original price from the sale priceMultiply the original price by the percent left as a decimal, or divide the sale price by that decimal to get the original price.
02Combine two percent changes in a row into one calculationMultiply the starting amount by one decimal for each percent change, one change after the other.
03Convert a rate such as kilometers per hour into other unitsWrite each conversion as a fraction whose units cancel, and convert both the distance and the time.
This lesson is part of the full library
207 lessons that teach every skill the SAT tests
71Math
40Reading
24Grammar
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