Question

http://prntscr.com/9frz84

Answer 1

To approach this problem, I would divide all the fractions and see if indeed two fractions are equivalent. After all, proportions will always have the same ratio.

Answer 2

so how would you do this cross multiply?

Answer 3

Cross multiplying is another way to approach this. Would you like me to explain it that way?

Answer 4

I know how to cross multiply, but what is the other way

Answer 5

The simplest way is to just divide the fractions and just compare them: \[\frac{ 1.5 }{ 3 } = 0.5\]\[\frac{ 3}{9} = 0.333...\]So those two are not a proportion since they don't yield the same ratio.

Answer 6

can u check my other answer?

Answer 7

s

Answer 8

If it is another question, close this question and post it as a new one for others to also see.

Answer 9

ok

Answer 10

so you can just cross multiply them

Answer 11

Yes, that is also another way. If the two products are the same, then they are a proportion.

Answer 12

@OpenStudier

Answer 13

I think its #2

Answer 14

But, 22 x 6 = 132 and 33 x 4 = 132. #2 is thus a proportion.

Answer 15

Got it @OpenStudier its c

Answer 16

Still would have to disagree. 142 x 3 = 2 x 213. Check using a calculator.

Answer 17

how would it be d really?

Answer 18

It is actually A, I even proved it to you earlier when I did the fractions.

Answer 19

i didn't get that lol ok thanks

Answer 20

No problem!

Answer 21

do you have time to check some more? @OpenStudier