[MOVED] algebra: Suppose A and B are proportional. Then...

[cathysthree]

Suppose A and B are proportional quantities. Of the following statement, which are true?

i) the ratio B:A is a constant
ii) A is a constant multiple of B
iii) B is a constant multiple of A
iv) A and B have a multipliciative relationship

I believe the statements all to be true except for the first. That one I don't think is true because when you are working with ratios it is extremely important in what order they are written. If A and B are proportional quantities, how can B:A be a constant?

Please advise me on these 4 statements...
Thank you very much I appreciate it...

 

[stapel]

If A and B are proportional quantities, how can B:A be a constant?

If A and B are proportional, then A = kB for some proportionality constant k. Then A/B = k, and B/A = ...

Isn't that also a constant?

Eliz.