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OpenStudy (anonymous):
Z is directly proportional to x and inversely proportional to y^2. a. if Z=10 when x=2 and y =1, what is z when x= 4 and y =3. b. if y doubles by what factor must x change in order for z to remain the same ? I need help with part B please.
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OpenStudy (whpalmer4):
What is your formula relating x,y, and z?
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