Question

MEDAL:


Which of the following forms a proportion with 9/15

12/20

10/6

15/21

3/45

Answer 1

Well you have to know how to set it up right. Do you know how?

Answer 2

no

Answer 3

I'll do one of them for you.

Answer 4

okay thanks

Answer 5

Okay, Open study isn't letting me post it. So what you're gonna do is youre gonna write 9/15 somewhere on a paper, and then put an equals sign and then write 12/20. Do you understand me so far?

Answer 6

yes

Answer 7

Okay, do you know how to cross multiply? If not, what you're gonna do is multiply 9 x 12 and 15 x 20 . If you get the same answer for both, then they are proportionate. I don't know if this is how your teacher taught you, this is how mine did.

Answer 8

okay thanks soo much :D