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3 years ago

B) Find the median queuing timeplease help!!!!

Mathematics

1 answer:

Brilliant_brown [7]3 years ago

7 0

Answer:

11 minutes.

Step-by-step explanation:

To find the median queing time from the cumulative frequency curve, we find

$\frac{1}{2} \sum \: f$

and trace it on the cumulative frequency curve.

From the graph, that total frequency is 100.

Half of this 50.

We trace the 50th item.

First locate 50 on the vertical axis and trace to the horizontal axis.

This corresponds to 11.

Note that each box is 0.5 units on the queing time axis.

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What is 5 divied by 5

Serhud [2]

Answer:

5 divided by 5 is 1

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3 years ago

Sung-Hi is filling a sandbox with sand at the rate shown in the table below. which statement must be true regarding the linear f

lana66690 [7]

Answer:

D. The rate of change must be 20 pounds per minute.

Step-by-step explanation:

At time 0, the amount of sand is 200 lb. Time zero is when it starts, so it is also called the initial time. The initial value is 200 lb, so choices A and B are wrong.

Now look at the difference from time 0 minutes to time 1 minute. The amount of sand went from 200 lb to 220 lb. The amount of sand placed in 1 minute is 20 lb, so the rate of change is 20 lb per minute. That makes choice C wrong and choice D correct.

Answer: D. The rate of change must be 20 pounds per minute.

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3 years ago

Read 2 more answers

the ratio of rock music total cds that ella owns is 25/40 .paolo has 59 rock music cds.the ratio of rock music to total cds in h

const2013 [10]

So, the given information tells us that the ratios between ella's rock music to total cds and paolo's rock music to total cds is the same. This means that we can set them up in a proportion equal to each other. (Let x represent the amount of total cds in paolo's collection)

25/40=59/x

Next, to simplify this equation, we need to use cross-products to cancel out the fraction bars.

25 59
=
40 x

If done correctly, the resulting equation is 20*x=59*40

When simplified, the resulting equation is 20x=2360

Finally, we need to divide both sides by 20, in order to find out what integer represents x in this equation.

x=118

This means that Paolo has a total of 118 cds in his collection.

The question asks how many CDs Paolo and Ella own together. To figure this out, all you need to do is add how many CDs Ella has (40) to how many CDs Paolo has (118).

40+118=158.

Paolo and Ella's combined collection of total CDs is 158 CDS.

7 0

3 years ago

Where do I place the coordinates for -2x-5 and -x-4

Maslowich

Step-by-step explanation:

you need to calculate coordinates first. just by having the function definitions you don't have any coordinates yet.

I typically pick x = 0 as a first point.

so, that gives

-2×0 - 5 = -5

as y result for the first line.

the point on line 1 is then (0, -5)

and we get -0 - 4 = -4 as y result for the second line.

the point for the second line is (0, -4)

for second points I typically go for x = 1.

for the first line we get

-2×1 - 5 = -2 - 5 = -7

and the second point is (1, -7) for the first line.

for the second line we get

-1 - 4 = -5

and the second point is (1, -5) for the second line.

so, make points on the chart for all 4 points, and connect them (and extend the connecting lines to the left and right to the end of the grid).

and the crossing point ?

that is where both equations deliver the same result.

so,

-2x - 5 = -x - 4

-x = 1

x = -1

and the y is then e.g. -2×-1 - 5 = 2 - 5 = -3

and the crossing point is (-1, -3)

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2 years ago

PLEASE ANSWER ASAP! 48 POINTS!!

elena-14-01-66 [18.8K]

the first choice has a negative 7 and the second choice has a negative 161 these are both negatives in different places which cause a different reaction

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2 years ago

B) Find the median queuing timeplease help!!!!​

B) Find the median queuing timeplease help!!!!