Answer:
b = -8
Step-by-step explanation:
crossmultiply
Answer:
x=1
y=-3
z=-7
Step-by-step explanation:
Answer:
The answer is already 82.8
Step-by-step explanation:
The .8 is already to the tenth so it is 82.8
Answer:
It increases
Step-by-step explanation:
The mean of the given data set of 8 values is 4.75 (
)
Adding 7 into the data set also increase the number of data points to 9, so the mean becomes:
, which is equal to 5
Hope this helps
It is not equal to -2 because the five is a negative so when adding two different integers are subtracted and with a negative sign.