Sagot :
Answer:
III. Ratio and Proportion:
11. 14:4 = 7:2
12. 1:2 = 4:8
13. 3:9 = 9:27
14. 12:20 = 9:15
15. 8:10 = 40:50
16. 5:7 = 25:35
17. 33:27 = 11:9
18. 36:30 = 30:25
19. 17:10 = 34:20
20. 2:7 = 6:21
Solutions:
11. 14:4 = 7:2
(4)(7) = (14)(2)
28 = 28
12. 1:2 = 4:8
(2)(4) = (1)(8)
8 = 8
13. 3:9 = 9:27
(9)(9) = (3)(27)
81 = 81
14. 12:20 = 9:15
(20)(9) = (12)(15)
180 = 180
15. 8:10 = 40:50
(10)(40) = (8)(50)
400 = 400
16. 5:7 = 25:35
(7)(25) = (5)(35)
175 = 175
17. 33:27 = 11:9
(27)(11) = (9)(33)
297 = 297
18. 36:30 = 30:25
(30)(30) = (36)(25)
900 = 900
19. 17:10 = 34:20
(10)(34) = (17)(20)
340 = 340
20. 2:7 = 6:21
(7)(6) = (2)(21)
42 = 42