Find an equation of variation in which the following are true.
-$y$ varies jointly as $x$ and $z$, and $y = 175$ when $x = 5$ and $z = 7$
A) $y = \frac { 175 } { x Z }$
B) $y = 5 x z$
C) $y = 35 x$
D) $y = 7 x z$

Question

Quizplus · Accepted Answer

The equation for joint variation is $y = kxz$. Given $y = 175$, $x = 5$, and $z = 7$, we can solve for $k$: $175 = k \cdot 5 \cdot 7$, which simplifies to $k = 5$. Thus, the equation is $y = 5xz$.

Find an Equation of Variation in Which the Following Are yyy

Find an Equation of Variation in Which the Following Are $y$