If z varies jointly as x and y and inversely as w^2?, and
z = 72 when x = 80, y = 30 and
w=5,...
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Mathematics, 02.07.2021 03:50 halieysandberg1234
If z varies jointly as x and y and inversely as w^2?, and
z = 72 when x = 80, y = 30 and
w=5, then find z when x = 20, y = 60 and w=9.
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