Answer:
x=4
Step-by-step explanation:
1/2x + 3/2x =4x-8 Combine like terms:
4/2x=4x-8
2x=4x-8
-2x -2x
0=2x-8
+8 +8
8=2x Divide:
4=x
Hope this helps:)
P=25,000÷(1+0.0425)^(18)
P=11,818.73
So the answer is b
Her method will produce a valid sample.
Her method will produce a random sample.
Her method will produce a representative sample.
Answer:
The third one is correct
Step-by-step explanation:
Answer:
3.4 minutes
Step-by-step explanation:
Every morning there are expected 240 customers who arrive at bank for the customer service. There are on average 240 customers arriving to the bank every morning. There are total 5 bank tellers and they take average 3 minutes to help customer. The average time each bank teller spends on satisfying a customer will be calculated using the linear model,
Using wait time calculator:
Average service time / standard deviation
Ce = 3/1.5 = 2
The spent time on a customer is 3.4 minutes.
