Question

Use cross products to determine which are valid proportions.

47 and 10747.5
Proportion
Not a Proportion
23 and 9/12
318 aná 81141
18 8 and 914
715 and 2720​

Answer 1

18/8 and 9/4, 4/7 and 10/17.5: PROPORTION.

2/3 and 9/12, 7/5 and 27/20, 3/8 and 6/141: NOT A PROPOTION :) Hope this help

Explanation:

have a good day C:

ps: the person above me is correct.

Answer 2

18/8 and 9/4, 4/7 and 10/17.5: PROPORTION.

2/3 and 9/12, 7/5 and 27/20, 3/8 and 6/141: NOT A PROPOTION :) Hope this help

Explanation: