Answer:
what is the question
Step-by-step explanation:
it's 9 because 58-49=9
So the answer is 9
<h2>Hope this helps :></h2><h2 /><h2>From Cambridge</h2><h2 /><h2>Please give brainliest</h2>
Answer: either of two angles whose sum is 180°.
Step-by-step explanation:
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
