II. Determine if the following pairs of numbers form a proportion. Write Yes or No.

Answer:

1) 3:20=9:60 → Yes

2) 3/4=15/20 → Yes

3) 5:7 = 2:5 → No

4) 10:12 = 30:39 → No

5) 1:2 = 2:4 → Yes

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Answer:

1. YES
2. YES
3. NO

4:20=YES

4.NO

5.YES

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