Answer:
-20=0
Step-by-step explanation:
So if 30 cents out of every dollar go to taxes, then the net income is 70 cents out of every dollar. So the ratio of taxes to net income is 30:70 (30 cents taxes to 70 cents net income) which is 3:7
We are to find the probability that the weight of total luggage for a sample of 100 passengers is less than 2100.
The mean weight of the luggage of passengers will be 2100/100 = 21.
So we have to find the probability of the mean weight to be less than 21.
Average weight = u = 19.4
Standard deviation = 5.3
Since we are dealing with a sample of 100. We will use the standard error.
Standard error =

Now we have to convert the weight to z-score

From z table we can find the probability of z being less than 3.018 is 99.87%.
Therefore, the probability that for (a random sample of) 100 passengers, the total luggage weight is less than 2,100 lbs is 99.87%
Answer:
Yes, the graph represents a proportional relationship. No, the graph does not represent a proportional relationship. It is a straight line, but it does not intersect the point (0, 0).
We know that if K is between H and J that HK+KJ=HJ therefore by substitution, x-5+5x-12=25
6x-17=25
6x=42
x=7