# math

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-w-z=-2 and 4w+5z=16 im trying to solve this equation by using subsitution

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1. ### subsitution method

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A relief package is released from a helicopter at 1600 feet. The height of the package can be modeled by the equation h(t)= -16t^2+1600 where h is the height of the package in feet and t is the time in seconds. The pilot wants to know …

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