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Guest
Guest
Suppose X varies directly with Y and Z and inversely with W, and X=3 when Y=2, Z=6, and W=16. Find X when Y=7, Z=20, and W=5.
I know how to do joint variation, but not so sure how to do directly in this kind if situation. Please help, much help would be appreciated
I know how to do joint variation, but not so sure how to do directly in this kind if situation. Please help, much help would be appreciated