Answer:
13
Step-by-step explanation:
x=true/false questions y = multiple choice
3x+5x=86
x+y=20
x=7, y=13
13 multiple choice questions
Answer:
{ -6, -4, -2}
Step-by-step explanation:
Since x > - 8, x can be any number greater than - 8.
x = -7, -6, -5, -4,...
BUT, it can't be equal because it's not using this sign 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
1. { -10, -8, -6} can't be an inequality of x because it has -10, -8.
2.{ -8, 0, 8} can't be an inequality of x because of -8.
3.{ -9, 1, 7} can't be an inequality of x because -9 isn't greater than x.
Answer:
The answer is 7,540 to the nearest tenth. If I'm wrong put it in the comments olease
20x+50=450
-50 -50
20x=400
Divide both sides by 20
X=20
The temperature at midnight would be -14*F. Subtract 10 from -4 and you get -14*F