Answer:
Step-by-step explanation:
-3x -2 = 19
+3x +3x
-2 = 19 + 3x
-19 -19
-21 = 3x
Divided by 3
-7 = x
I think E but I’m probably wrong???
Answer:
- Standard deviation is how far away the values are from the mean.
- All of your graphs have normal distribution, meaning the mean is in the center.
<em>The more spread out your graph is, the greater the standard deviation.</em>
So the option with the most spread out graph, which I think is A, can't see very clear.
Let number of senators = x, then:-
number of representatives = 5x - 25 so
x + 5x - 25 = 515
6x = 540
x = 90
number of reps = 515 - 90 = 425
so there are 90 senators and 425 representatives.
