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olasank [31]
4 years ago
13

In a certain manufacturing process, it is known that, on average, 1 in every 100 items is defective.

Mathematics
1 answer:
Rashid [163]4 years ago
5 0

Answer:

A. 0.009899

B. 0.005624

Step-by-step explanation:

Data:

Let the probability that an item is defective = \frac{1}{100}

The probability that the item is not defective = \frac{99}{100}

The probability that the fifth item is defective = \frac{1}{100}* \frac{98}{99}

                                                                            = 0.009899

Probability that one in 5 items is defective  = 0.005624

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A washer and a dryer cost $587 combined. The washer costs $63 less than the dryer. What is the cost of the dryer?
Ghella [55]

Answer:

The dryer costs $325.

Step-by-step explanation:

Let <em>w</em> represent the cost of the washer and <em>d</em> represent the cost of the dryer.

They cost $587 combined. In other words:

w+d=587

The washer costs $63 less than the dryer. Therefore:

w=d-63

Thus, we have the system of equations:

\displaystyle \begin{cases} w+d = 587 \\ w=d-63\end{cases}

We can solve it using substitution. Substitute the second equation into the first. Hence:

(d-63)+d=587

Combine like terms:

2d-63=587

Add 63 to both sides:

2d=650

And divide both sides by two. Hence:

d=325

The dryer costs $325.

Further Notes:

And since the washer is $63 less, the washer costs:

w=(325)-63=262

The washer costs $262.

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3 years ago
Instructions: Using the image, find the distance between the points given on the graph.​
Alex_Xolod [135]

Answer:

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8 0
4 years ago
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emergency Alejandro has gone to school 5 Over 7 of the last 35 days. Which expression can be used to determine the number of day
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Step-by-step explanation:

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Need help for this please
EastWind [94]
The perimeter is about 82 yards

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now just add the 2 answers
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