Answer:
90, B
Step-by-step explanation:
3 x 3 = 9
3 x 3 = 9
6 x 3 = 18
6 x 3 = 18
6 x 3 = 18
6 x 3 = 18
9 + 9 + 18 + 18 + 18 + 18 = 90
Answer:
Simplify:
Step-by-step explanation:
Answer:
Some of the other answers are good examples of solving a system of three equations in three unknowns, which is what this problem is asking. Though the simplest way to solve this problem is actually to notice that, if we sum the three equations, we get:
X + Y = 10
X + Z = 20
+ Y + Z = 24
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2X + 2Y + 2Z = 54
Factoring out the 2, we have 2(X + Y + Z) = 54, and dividing both sides by 2 reveals that X + Y + Z = 27.
Step-by-step explanation:
hopefully this helps
Step-by-step explanation:
May you reword it? I don't quite understand.
What are the conclusions?
I would assume that even though both hot chocolate and coffee increased and decreased at the same time, they are not a correlation since one doesn’t cause the other to increase/decrease
