Question
Find an equation of variation in which:$y$ varies jointly as $x$ and $z,$ and $y=\frac{3}{2}$ when $x=2$ and $z=10$.
Step 1
This means that $y$ is equal to the product of $x$ and $z$ times some constant. We can write this relationship as: \[y = kxz\] where $k$ is the constant of variation. Show more…
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