Suppose that three variables x, y, and x are related by the rule z= kxy with k> 0. considering x> 0 andy> 0 how will the value of z change if : x is held constant and t increases? x is held constant and t decreases?

Given that the three variables x,y, and z are related by the rule z= kxy with k>0.

This means that x and y are directly proportional to z.

Given that x > 0 and y > 0

For values that are directly proportional, an increase in the independent variable leads to an increase in the dependent variable and a decrease in the independent variable leads to a decrease in the dependent variable.

Therefore, the value of z will increase if x is held constant and y increases.

And the value of z will decrease if x is held constant and y decreases.

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!