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If y varies directly with x and y = 1.44 when x = 1.8, what is y when x = 6.3?(Show work) (3 pts)

Answer :

This problem is about direct variations. We can solve it usig "the rule of three".

We know that y=1.44 when x=1.8, this is a given ratio which will multiply x=6.3

[tex]6.3\cdot\frac{1.44}{1.8}=\frac{6.3\cdot1.44}{1.8}=\frac{9.072}{1.8}=5.04[/tex]

Therefore, when x=6.3, y=5.04.

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