Answer:
m=1
Step-by-step explanation:
12m - 4m = 8m
4 + 4= 8
Put them together:
8m=8
Divide on both sides
m=1
Answer:
You would end up with X= -2, y= 2
And they would intersect at point (-2,2) on a graph :)
Answer:
0.5763
Step-by-step explanation:
We need to estimate the standard error of the mean.
Standard error of the mean = standard deviation of the original distribution/√sample size
Standard error of the mean = 75/√9 = 25
Now we can use this Standard error to estimate z as follows:
Z = (x – mean)/standard deviation
We want the mean expenditures within $20, so x – mean = 20 and -20
Z = (20)/25
Z = 0.8
Z = (-20)/25
Z = -0.8
Using a Z table we can find probability
P (-0.8<z<0.8)= 0.5763
20 + 5 = 25
25/5 = ?
25 divided by 5 is 5.
Therefore, we can buy 5 gifts
Answer: Patty can buy 5 gifts
Y + 7 = 5x is a linear function ... y = 5x - 7 (equation of a LINE which is LINE A R)