8/z = 10/25 = 6/15 What does z = ?

12/36 = 14/42 = 8/t what does t =

Part (1):

8/z = 10/25 = 6/15

This can be simplified as:

8/z = 2/5

Use cross multiplication as follows:

8*5 = 2*z

40 = 2z

z = 40/2 = 20

Part (2):

12/36 = 14/42 = 8/t

This can be simplified into:

8/t = 1/3

Use cross multiplication as follows:

3*8 = t*1

t = 24