Decrease = New number - Original Number
% Decrease =
![\frac{Decrease}{Original~number}](https://tex.z-dn.net/?f=%20%5Cfrac%7BDecrease%7D%7BOriginal~number%7D%20)
× 100
Decrease = 9 - 12 = -3
% Decrease =
![\frac{-3}{12}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-3%7D%7B12%7D%20)
= -0.25 × 100 = -25
Your answer =
-25
Well you have to change the first number in ALL of the () so
(-1,1) = (1,1)
(-2,-1) = (2,-1)
(-1,0) = (1,0)
so your answer is d <span>(1, 1), B(2, -1), C(1, 0)</span>
Mean: 52.2 because its the average of all the numbers
Range: 2 because (60-58)
Median: 53 because its in the middle of all the numbers
Mode : None
The answer is -2.67. You move 48 to the other side of the = sign and that = -48, then you divide -48 by 18 and you get -2.67.
11) 5a-3a= 2
15) 17+(-17)= 0
13) (-9)+3= -6
14) 12(1)= 12
12) (8x)y= 8xy