if an ordered pair is a solution, it should satisfy the equation.
see the first option
, if you put $x=4$ and $y=12$
you'll get $12=12$ which is true.
now the last option, $y=8-x$ put $x=4$ and $y=12$
$12=8-4\implies 12\ne4$ thus it is not a solution.
So option 4 is correct
Answer:
32
Step-by-step explanation:
Answer:
I'm not really sure but I think it's 160°
Step-by-step explanation:
ST is equal to 30° x 2 so 60°
Now, you'll do 60+140 which equals to 200°
A full circle is 360° so, 360 - 200 = 160°
Ps: I'm not sure but I think this is correct.
I hope this helps :)
Answer:
$127.75 a week
Step-by-step explanation:
first you subtract 116.75 from 500 so you get 383.25
second you divide 383.25 by 3