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Mathematics, 26.01.2020 19:31 ninaaforever

2. suppose that y varies directly with x and inversely with z, and y = 18 when x = 15 and z = 5. write the equation that models the relationship. then find y when x = 21 and z = 7.

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2. suppose that y varies directly with x and inversely with z, and y = 18 when x = 15 and z = 5. wri...
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