The statistical question would be B.
Answer:
Not quite sure what the purpose of this question is, but... How do you get straight A's?
Use a ruler
*insert rimshot*
Step-by-step explanation:
Set up a ratio:
24 / 36 = x /12
cross multiply:
24 * 12 = 36 * x
288 = 36x
divide both sides by 36
x = 288 / 36
x = 8
answer is A) 8
We can solve this by elimination, in order to do this we need to multiply the bottom equation by three to cross out the X
(x+5y=38)3 3x+15y=114
-3x+4y=95
3x+15y=114
then add the two equations together and the X will cancel out
19y=209
----- -----
19 19
y=11
then plug that in into one of the equations
x+55=38
-55 -55
x= -17
your answer is (-17,11)
Answer:
The solution of the equation
is
.
Step-by-step explanation:
Let
, we see that number of equation and variables are both the same and can be solved by algebraic means.
1)
Given
2)
Commutative property
3)
Compatibility with addition/Associative property
4)
Additive inverse/Modulative property/Definition of substraction/Result
The solution of the equation
is
.