Zvaries directly with x and inversely with y. when x=6 and y=2, .z=15. write function that models variation. then, find z when x=4 and y=9. write answer in a/b form if necessary.

hi! i think the answer is 1/2 : )

a. (14,375+570)(5.3) b. 158,417$

step-by-step explanation:

a. you are basically just setting up the equation. f= amount of debt hence 14,375. g= how much she is borrowing from her parents weekly hence 570 and t= the interest on her debt. creating the equation.

b.   14,375+570= 14,945

      14,945 x 5.3 = 79,208.5

      79,208.5 x 2(years) = 158,417(answer)