Answer:
1. 40:2 = 20:1 - Proportion
2. 12:3 = 2:8 - Proportion
3. 11:4 = 22:2 - Not Proportion
4. 2:4 = 16:20 - Not Proportion
5. 7:21 = 3:9 - Proportion
6. 2/5 = 8/20 - Proportion
7. 4/7 = 3/6 - Not Proportion
8. 10/12 = 7/5 - Not Proportion
9. 4/5 = 8/10 - Proportion
10. 3/5 = 9/15 - Proportion
Step-by-step explanation:
Kung Gusto Mong Makasiguro, Try Mo Lang Toh.
Example:
40:2 = 20:1
40 20
--- x ----
2 1
40 x 1 = 40
20 x 2 = 40
40 = 40 Proportion