1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
adelina 88 [10]
2 years ago
12

Suppose that 95% of the fasteners pass the initial inspection. Of those that fail the initial inspection, 20% are defective. Of

the fasteners sent to the recrimping operation, 40% cannot be corrected ad are scrapped; the are corrected by the recrimping and then pass inspection.
A. What proportion of the fasteners that fail the initial inspection pass the second inspection(after the recrimping operation)?
B. What proportion of fasteners pass inspection?
C. Given that a fastener passes inspection, what is the probability that it passed the initial inspection and did not have to go through the recrimping operation?
Mathematics
1 answer:
hichkok12 [17]2 years ago
7 0

Answer

Step-by-step explanation:

Let x be the fasteners

95% of x passed, and 5% of x failed

20% of the 5% which failed are defective, remaining the 80% of the failed 5%.

Now 40% of this 80% of the 5% which failed are scrapped, meaning only the remaining 60% passed second inspection.

Thus

a). The proportion ;

60% of 80% of 5% of x

mathematically

= 60/100 × 80/100 × 5/100

= 0.024 or 2.4%

b) initially 95% passed and later on 2.4% pass again. Therefore total that passed = 95%+2.4%=97.4%

c) probability that it passed on first inspection is 95/100

Percentage that went through recrimping = 80% of 5% = 80/100 × 5/100 = 1/25 or 0.04 or 4%

Thus probability of passing and not going through recrimping

= 1 - (1/25) = 0.96 or 96%

You might be interested in
How many 1/6 hamburger patties can be made with 1/2 pound of hamburger meat
Sever21 [200]

Answer:

3.

Step-by-step explanation:

please brainliest

7 0
2 years ago
Read 2 more answers
David can run 4 miles in 75 minutes .what is Davides jogging rate per hour ?
Nina [5.8K]

Answer:

3.2 miles per hour

Step-by-step explanation:

Time=75 minutes=75/60=5/4=1.25 hours

Speed=Distance/time=4/1.25=3.2 miles per hour

David's jogging rate is 3.2 miles per hour.

4 0
3 years ago
RATIO TABLES: An ostrich can run at a rate of 50 miles in 60 minutes. At this rate, how long would it take an ostrich to run 15
Marat540 [252]
15      50
---- = ----
 x       60
(15*60)/50
900/50
18

It takes the ostrich 18 minutes to run 15 miles.
7 0
2 years ago
Ms. Watts is a famous motivational speaker. She travels across the country by jet and gives an average of ten presentations a we
expeople1 [14]

Answer:

5 weeks

Step-by-step explanation:

We are told that the auditorium holds an average of 1000 people each.

And that she charges $40 each.

Thus;

Total income for each speech is;

1000 × 40 = $40000

Since she gives an average of 10 presentations each week.

Total income per week = 10 × 40000 = $400,000

Now,the expenses she makes for each speech weekly is;

Renting auditorium = $15000

Motel, jet expenses, support personnel = $75000

Thus,

Total expenses per week = 15000 + 75000 = $90000

Now, total profit per week is;

P_weekly = Total income per week - Total expenses per week

P_weekly = $400000 - $90000

P_weekly = $310000

There are 52 weeks in a year, thus, profit in a year is;

P_yearly = 52 × 310000 = $16120000

Now, we want to find out how long it took her to make $1,400,000 a year.

We know that;

$16120000 was achieved in 52 weeks

Thus;$1,400,000 will be achieved in;

(1400000 × 52)/16120000 = 4.52 weeks approximately 5 weeks.

4 0
3 years ago
I need to know 2/7 divided by 6 =
Marina CMI [18]
It’s an irrational number just use a call
7 0
3 years ago
Read 2 more answers
Other questions:
  • Show your work in the comments below and and the answer choice
    5·1 answer
  • PLS HELP!! The graph of an equation is shown below. which of the following points is a solution to the equation?
    8·1 answer
  • In the equilateral triangle XYZ, X is located at (-5, -9) and Z is located at (1, -17). What is the perimeter of Triangle XYZ? a
    8·1 answer
  • (10 POINTS AND BRAINLIEST FOR BEST)
    9·1 answer
  • Whats equation represents an exponential function that passes through the point (2, 80)?
    10·1 answer
  • When the angle of elevation to the sun is 28 degrees, a flagpole casts a shadow that is 42.5 ft long. What is the
    6·1 answer
  • Michael is saving to buy his senior ring. The base cost of the ring is $280 plus any upgrades he wants to purchase. If he saves
    6·1 answer
  • 3 n - 5 p + 2 n = 10 p for n
    10·1 answer
  • Kyung bought 3 CDs that cost x dollars each, 2 DVDs that cost $10 each; and a book that cost $15. Write an expression in simples
    5·1 answer
  • Can someone help me find the solution to these equations by using substitution
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!