Ratios

Question 1

Inverse variation ratios

Answer 1

If y varies inversely with x we can solve by doing y=k/x

Question 2

Combined variation

Answer 2

Y varies directly with x and inversely with z we can say y = kx/z

Question 3

Joint variation

Answer 3

Y varies jointly with x and z can be written as y = kxz

Question 4

inversely jointly variation

Answer 4

Y varies inversely jointly with x and z can be written as y = k/(xz)