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Suppose that y varies directly with x and inversely with z, y = 18 when x = 15 and z = 5. How do you write the equation that models the relationship, then find y when x = 21 and z = 7? |
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Answer» Suppose that y varies directly with x and inversely with z, y = 18 when x = 15 and z = 5. How do you write the equation that models the relationship, then find y when x = 21 and z = 7? Solution: |
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