Use the given values to write an equation relati g x,y and z given that z varies jointly with x and y
X=3
Y=2
Z=2.4
Z = k * xy.
2.4 = k * 3*2, k = 0.4.
Z = 0.4xy.
To write an equation relating x, y, and z when z varies jointly with x and y, we can use the formula:
z = k * x * y
where k is the constant of variation.
Given that x = 3, y = 2, and z = 2.4, we can substitute these values into the equation to find the value of k:
2.4 = k * 3 * 2
To solve for k, we divide both sides of the equation by 6:
2.4/6 = k
0.4 = k
Now that we have the value of k, we can rewrite the equation:
z = 0.4 * x * y
So, the equation relating x, y, and z is:
z = 0.4xy