B. Directions: Write YES if the pairs of ratios form a proportion;
otherwise, NO.
1.) 5:15 and 10:30
6.) 16:4 and 25:5
2.) 10:15 and 20:25
7.) 20:60 and 30:90
3.) 5:10 and 100:300
8.) 12:10 and 24:20
4.) 75:25 and 10:35
9.) 30:300 and 70.700
10.) 20:30 and 40:50
5.) 12:24 and 6:12
otherwise, NO.
1.) 5:15 and 10:30
6.) 16:4 and 25:5
2.) 10:15 and 20:25
7.) 20:60 and 30:90
3.) 5:10 and 100:300
8.) 12:10 and 24:20
4.) 75:25 and 10:35
9.) 30:300 and 70.700
10.) 20:30 and 40:50
5.) 12:24 and 6:12
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Answer:
1.yes
2.yes
3.yes
4.yes
5.yes
6.no
7.no
8.yes
9.no
10.yes