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Check it outJoint and Combined Variation  Problem 1 3,404 views
Carl Horowitz
Carl Horowitz
University of Michigan
Runs his own tutoring company
Carl taught upperlevel math in several schools and currently runs his own tutoring company. He bets that no one can beat his love for intensive outdoor activities!
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Concept (1)
Sample Problems (2)
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Joint and Combined Variation
Problem 1 3,403 views'a' varies jointly to 'b' and the square of 'c' and inversely to 'd'.

Joint and Combined Variation
Problem 2 2,802 viewsYour BMI varies directly as your weight (in pounds) and inversely as the square of your height (in inches).
If a person 5 feet tall weighs 131 pounds has a BMI of 25, find the BMI of somebody 6 feet tall who weighs 190 pounds.
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