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Tems11 [23]
3 years ago
12

Helppp pleaseee

Mathematics
1 answer:
Oliga [24]3 years ago
7 0
B.28 Years Hope it help
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The number of pages printed before replacing the cartridge in a laser printer is normally distributed to a mean of 11,500 pages
Helen [10]
<span>a. What is the probability that the printer produces more than 12,000 pages before this cartridge must be replaced? 
solution
to solve the equation we need to find the z-score:
z=(x-</span>μ)/σ
where:
x=12000
μ=mean=11500
σ=standard deviation=800
thus
z=(12000-11500)/800=0.625
thus
P(x>12000)=1-P(x<12000)=1-0.7357=0.2643

<span>b. What is the probability that the printer produces fewer than 10,000 pages?
z=(10000-11500)/800
z=-1.875
hence
P(x<10000)
=0.0301

</span>
5 0
4 years ago
Help help help help help
Alenkinab [10]

Answer:

8

Step-by-step explanation:

To solve this, you can add 2/5 b to both sides of the equation. You now have 3 + 5/5 (or 1) b = 11. => 3 + b = 11 => Now, subtract 3 from both sides, and you have b = 11 - 3, and then b = 8.

8 0
4 years ago
Read 2 more answers
Patricia, Luca and Dauda shared an amount of money such that, Patricia had twice as much
inn [45]

Answer:

GH 1533

Step-by-step explanation:

Let Dauda's share of the money=x

Patricia had twice as much  as Dauda, therefore:

Patricia's share=2x

Luca had GH 600.00 more than Dauda, therefore:

Luca's Share =x+600

If Patricia had GH 2,000.00

Then: 2x=2000

x=1000

Therefore:

  • Dauda's Share=GH 1000
  • Patricia's share=GH 2000
  • Luca's Share =1000+600=GH 1,600

Next, we determine the average share.

\text{Average Share=}\dfrac{1000+2000+1600}{3}\\=\dfrac{4600}{3}\\\\=$GH 1533.33\\\text{Average Share} \approx $GH 1533 (to the nearest GH)

5 0
3 years ago
Estimate 46+47+65+75+23=
sveticcg [70]
The answer my dear friend is 260
8 0
4 years ago
Read 2 more answers
Ben earns an annual income of $12,800 a year. The income tax he has to pay is 15%. What is the amount of income tax in dollars a
kirill115 [55]

Answer:

$

1

,

920

Explanation:

Find  

15

%

×

12800

15

100

×

12800

1

=

$

1

,

920

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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