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ch4aika [34]
3 years ago
13

I need help please Right now if you could!!

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0

Answer:

Step-by-step explanation:

Step 2:       2.8z - 3.4z - 7.2 + 6.6

Step 3:       -0.6z - 0.6

-7 (-15w + 21) + 3(18 - 27w)

step 1: 105w - 147 + 54 - 81w

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On average, 240 customers arrive at a bank every morning (8AM - noon), but they do so randomly (i.e., not exactly every minute).
arlik [135]

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.

7 0
3 years ago
A snail moved 375 centimeters in 5 hours. How fast was the snail moving? Solve for speed.
ivann1987 [24]

Answer: 75 cm per hour

Step-by-step explanation:

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8 0
3 years ago
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A textbook store sold a combined total of 368 psychology and sociology textbooks in a week. The number of psychology textbooks s
OLga [1]

Step-by-step explanation:

Total books = 368.

Sociology books = 92.

Psychology books = 3 times sociology books

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Total = 276 + 92 = 368

3 0
3 years ago
Help me with number 7 for 10 points!!!
Ket [755]
Remember this rhyme:

Hey Diddle Diddle, the medians the middle:

(Answer for your question: Median is 80%)

You add and divide for the Mean: 

( Answer for your question: Mean is 93)

The mode is the one that appears the most:

( Answer for your question: Mode is 87%)

And the range is the difference between.:

( Answer for your question: Range is 54.)

I hope this helps! :)
3 0
3 years ago
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Find the number that makes the ratio equivalent to 1:3.<br> 4:_____<br> 12 or 13 or 9 or 11
ankoles [38]
The answer would be 12
6 0
3 years ago
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