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
Ainat [17]
2 years ago
14

Simplify the expressions. 2 1/8 x+3/4 x+ 1/6 - 7/12x+5 2/3

Mathematics
1 answer:
pshichka [43]2 years ago
4 0

Answer:

Step-by-step explanation:

You might be interested in
15. Suppose a box of 30 light bulbs contains 4 defective ones. If 5 bulbs are to be removed out of the box.
Naddika [18.5K]

Answer:

1) Probability that all five are good = 0.46

2) P(at most 2 defective) = 0.99

3) Pr(at least 1 defective) = 0.54

Step-by-step explanation:

The total number of bulbs = 30

Number of defective bulbs = 4

Number of good bulbs = 30 - 4 = 26

Number of ways of selecting 5 bulbs from 30 bulbs = 30C5 = \frac{30 !}{(30-5)!5!} \\

30C5 = 142506 ways

Number of ways of selecting 5 good bulbs  from 26 bulbs = 26C5 = \frac{26 !}{(26-5)!5!} \\

26C5 = 65780 ways

Probability that all five are good = 65780/142506

Probability that all five are good = 0.46

2) probability that at most two bulbs are defective = Pr(no defective) + Pr(1 defective) + Pr(2 defective)

Pr(no defective) has been calculated above = 0.46

Pr(1 defective) = \frac{26C4  * 4C1}{30C5}

Pr(1 defective) = (14950*4)/142506

Pr(1 defective) =0.42

Pr(2 defective) =  \frac{26C3  * 4C2}{30C5}

Pr(2 defective) = (2600 *6)/142506

Pr(2 defective) = 0.11

P(at most 2 defective) = 0.46 + 0.42 + 0.11

P(at most 2 defective) = 0.99

3) Probability that at least one bulb is defective = Pr(1 defective) +  Pr(2 defective) +  Pr(3 defective) +  Pr(4 defective)

Pr(1 defective) =0.42

Pr(2 defective) = 0.11

Pr(3 defective) =  \frac{26C2  * 4C3}{30C5}

Pr(3 defective) = 0.009

Pr(4 defective) =  \frac{26C1  * 4C4}{30C5}

Pr(4 defective) = 0.00018

Pr(at least 1 defective) = 0.42 + 0.11 + 0.009 + 0.00018

Pr(at least 1 defective) = 0.54

3 0
3 years ago
5(y+2/5)=-13<br> what is y
jolli1 [7]

Answer:

y=11/5

Step-by-step explanation:

first divide by 5 on both sides

y+2/5=-13/5

subtract 2/5 on both sides to isolate the y

y=11/5

:))

8 0
2 years ago
Read 2 more answers
PLEASE HELP !! ILL GIVE BRAINLIEST !!
AveGali [126]

Answer:

Angles and XWY and STR

Step-by-step explanation:

These two angels are alternate exterior angels because:

- They are on different sides of the transversal (the line intersecting the two parallel lines)

- They have the same angle measure

- They are exterior, meaning they are on the outside, not inside (interior)

Hope this helps!!! :)

8 0
2 years ago
The options are 1. is, is not
djverab [1.8K]

Answer:

1. is not

2. increase

3. remain the same

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Word Problem 3 Priscilla works 43 hours a week for eight weeks. If she makes $14.73 per hour, how much money did she make in the
VLD [36.1K]

Answer:

$5067,12

Step-by-step explanation:

14,73*43*8

4 0
2 years ago
Other questions:
  • 4000 principal earning 7% compounded annually , 7 years
    7·1 answer
  • Graph the piecewise function (20 points!)<br> (image provided below)
    10·1 answer
  • Can u help me plz its vocabulary​
    15·2 answers
  • Josie buys a necklace for $24 which is 80% off. How much was the full price of the necklace
    5·2 answers
  • Find the vertex of h(x)=(x+6)^2
    13·1 answer
  • In 1980, the number of African elephants was 1,200,000 but that number was decreasing 5.25% a year.
    5·1 answer
  • find the maximum number of children to whom 30 sweaters and 45 trousers can be equally divided. also how many sweaters and trous
    8·1 answer
  • Can someone answer this one it’s urgent
    9·1 answer
  • Find Q, I'm not sure if it is possible however.
    9·1 answer
  • Calculate the area of this triangle.<br><img src="https://tex.z-dn.net/?f=%20" id="TexFormula1" title=" " alt=" " align="absmidd
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!