Simplest method: elimination.
Subtract the first equation from the second one.
(2a+b=-33)-(a+b=-10) gets you to a=-23.
Now plug that in for a and solve.
-23 +b=-10
b=13
Answer:
-14.53
Step-by-step explanation:
-5.23-9.3=-14.53 it's a negative plus a negative
-10m - 6m -8 -6m = −22m −8
Answer:
2, the second number line.
Step-by-step explanation:
-1 x 1/2 = -0.5
With 'random sampling' every item in the population has an equal probability of being selected.