For the inverse variation equation xy = k, what is the value of x when y = 4 and k = 7?
4/7
7/4
3
28

Step-by-step explanation:

the equation is:

To find the value of , we need to substitute the values that we know for and :

and

so, we substitute this values into the equation

and we clear for , for this we move the 4 to the right dividing:

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100