Question 1128252

Use the given information to find the unknown value.
y varies jointly as the square of x and the square root of z. When x = 2 and z = 9, then y = 48.
Find y when x = 3 and z = 16.
<pre>Correct answer: {{{highlight_green(matrix(1,3, y, "=", 144))}}} 
This will NOT give you the right answer: {{{cross(y=kx*sqrt(z))}}}


{{{cross(k=y/x(sqrt(z)))}}}


<s>
The rest is done  by substitution.</s>