Question

7. Are the following in proportion:
(a) 4:12 :: 6 : 18 (b) 2:5 :: 6:9
(c) 4:9 :: 16:21 (d) 21:16 :: 25: 20.​

Answer 1

Answer:

a,b,

Step-by-step explanation:

Answer 2

Answer:

a) yes

b) no

c) no

d) no

Step-by-step explanation:

a) 4:12 in lowest term is 1:3

6:18 in lowest term is 1:3.

Thus, Yes.

b) 2:5 in lowest term is 2:5

6:9 in lowest term is 2:3

Thus, no.

c) 4:9 in lowest term is 4:9

16:21 in lowest term is 16:21

Thus, no.

d) 21:16 in lowest term is 21:16

25:20 in lowest term is 5:4

Thus,no