let coordinates be (x , y)
Calculate x coordinate :- (x + 1) / 2 = -6 gving x = -13
y coordinate:- (y + 3)/2 = -5 giving y = y = -13
Its choice B
Cross multiply to solve proportions. The answer could also be written as 6.4
30y i THINK i am not amazing at math
here are my steps
combine like terms: 3•2•y•y•y/5
multiply coefficients: 6•y•y•5/y
Rewrite: 6•y^2•5/y
Now its 6y^2 • 5/y over y which = 30y^2 over y which = 30y^1 or 30y
Answer:
8a over 5
Hope this helps :)
Step-by-step explanation:
All you have to do is plug in the x and y values for each ordered pair into the left hand side of the equation and see if you get 15 = 15. If you do, the ordered pair is a solution; otherwise it is not a solution. For example, let's try (-2,-3); that is x = -2 and y = -3:
2x - 9y = 15
2(-2) - 9(-3) = 15
-4 - (-27) = 15
-4 + 27 = 15
23 = 15
This is obviously not true, so (-2,-3) is not a solution. Now you try it on each of the ordered pairs given in the problem statement.
