Answer:

x=20

Step-by-step explanation:

Let the consequent be x

3/4 = 15/x

3x = 15 x 4

x = (15 x 4)/3

x = 5 x 4

x = 20

hope this helps u

Answer:

(i) 3:5 = 3/4

3/4=15/y let antecedent be y

15×3/4=y

45/4=y

45:4

(ii) 3:4=3/4

3/4=z/20 let consequent be z

20×3/4=z

5×3/1=z

15/1 = z

15:1