A line with arrows that points opposite from each other.<span />
You already know what it is cuh
Hi!
I think Grace needs to wash at least 6 cars. Please tell me if I'm wrong.
Thank you
You mean 28 divided by 7 bc thats 4 and for the other thing that is not the correct thing and it could never be true soooo.
From any proportion, we get another proportion by inverting the extremes (or the means):
= k
so we have:
2x=3k
2x+y=2k therefore:
3k+y=2k
y= - k
x=
= -
The corect answer is A. -3/2
or:
From any proportion, we get another proportion by inverting the extremes and the means:
We use a property of proportions:
where a, d are extremes and b,c are means and the product of the extremes equals the product of the means (a*d=b*c),
so we have
or
(you can check this also by "the product of the extremes equals the product of the means")
3y = - 2x
