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Radda [10]
4 years ago
14

Six machines at a certain factory operate at the same constant rate. If four of these machines, operating simultaneously, take 2

7 hours to fill a certain production order, how many fewer hours does it take all six machines, operating simultaneously, to fill the same production order?A: 9B: 12C: 16D: 18E: 24
Mathematics
1 answer:
andreyandreev [35.5K]4 years ago
7 0

Answer:

A) 9

Step-by-step explanation:

No. of hours required: 4×27 = 108

If 6 machines working:

108÷6 = 18 hours

27 - 18 = 9 hours fewer

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A mattress store received a shipment of ten mattresses. Before the shipment, it had 782 mattresses in stock. How many mattresses
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Find the z score that has 70.54% of the distribution area to its right
Alik [6]

The z score that has 70.54% of the distribution area is 9.92

<h3>What is a z-score?</h3>

The z-score is a numerical measurement used in statistics to refer to how much a given value differs from the standard deviation.

For the random variable x, the z-score is;

z = (x - 11)/2

therefore, 70.54% of the area under the curve lies to the right of x,

then the area to the left of x is;

100 - 70.54 = 29.46%

From the standard table, a z-score of -0.54 will yield an area of 29.46% to the left of x.

Therefore, we get;

(x - 11)/2 = -0.54

x - 11 = -0.54(2)

x = 9.92

The z score  is 9.92

Learn more about z score here;

brainly.com/question/4167122

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7 0
1 year ago
What is the image of (-8,6) after a translation over the line y=-x
stira [4]

Answer:

(-6, 8)

Step-by-step explanation:

(x, y) --> (-y, -x)

(-8, 6) --> (-6, 8)

Therefore, (-6, 8)

I hope this helped and have a good rest of your day!

8 0
3 years ago
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