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A varies jointly as b and c. Find a when b = 7 and c = 9, if the constant of the variation is 3. |
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Answer» A varies jointly as b and c. Find a when b = 7 and c = 9, if the constant ofthe variation is 3. A joint variation is a direct variation with two or more variables.A varies jointly as b and c is equivalent to a = kbc, where k isa non-zero constant variation that is also known as the constant of proportionality. |
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