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
Vadim26 [7]
3 years ago
13

The denominator of a fraction in the simplest form is greater than the numerator by 1. If 4 is added to the numerator, and 3 is

subtracted from the denominator, then the fraction itself is increased by 2 1 6 . Find the original fraction.
Mathematics
1 answer:
Fantom [35]3 years ago
4 0

Answer:

Step-by-step explanation:

Let the original fraction is: x/ x-1

And we have that:

  • 4 is added to the numerator => new numerator is: x+4
  • 3 is subtracted from the denominator => new denominator is: x -1-3 = x -4

the fraction itself is increased by 2\frac{1}{6}

<=> \frac{x}{x-1} *2\frac{1}{6} = \frac{x+4}{x-4}

<=> 7x^{2} -70x +24 = 0

Solve for X then we substitue into the original fraction

You might be interested in
Karen batting average was 0.444 She was at bat 45 times.how many hits did she get?
Simora [160]
<span>Karen got an average of 0.444 hits out of 45 bats.
We need to find the number of hits did Karen got.
=> 45 bats all in all
=> 0.444 average hits
x = how many hit did she get
Now, let’s multiply the total bats to Karen’s average hit:
=> 45 x 0.444 …. (repeating decimals)
=>  20
Therefore, Karen hit 20 times out of 45 bats
Let’s check our answer:
=> 20 / 45
=> 0.44444…. (repeating decimals)

</span>



4 0
2 years ago
Read 2 more answers
Computer keyboard failures are due to faulty electrical connects (12%) or mechanical defects (88%). Mechanical defects are relat
anzhelika [568]

Answer:

(c) Probability that a failure is due to loose keys = 0.2376

(d) Probability that a failure is due to improperly connected or poorly welded wires = 0.078

Step-by-step explanation:

The Whole probability scenario is given for Computer Keyboard failures.

(a) Let F be the event of failure due to faulty electrical connects, P(F) = 0.12

 M be the event of failure due to mechanical defects, P(M) = 0.88

 LK be the event of mechanical defect due to loose keys, P(LK/M) = 0.27

 IA be the event of mechanical defect due to improper assembly, P(IA/M)   =0.73

 DW be the event of electrical connects due to defective wires,P(DW/F) = 0.35

 IC be the event of electrical connects due to improper connections,

  P(IC/F) = 0.13 .

PWW be the event of electrical connects due to poorly welded wires,

  P(PWW/F) = 0.52

(b)                                     <u> </u><u>Keyboard failures</u>

<h2>                              /               \</h2>

           <u> </u><u> Faulty electrical connects   </u>            <u>Mechanical Defects </u>          

                      P(F) = 0.12                                             P(M) = 0.88

<h2>        /            |             \                  /            \</h2>

<u><em>Defective wires</em></u>  <u><em>Improper</em></u>        <u><em>Poorly</em></u>                  <u><em>Loose Keys</em></u>      <u><em>Improper</em></u><em> </em>

P(DW/F)=0.35   <u><em>Connections</em></u>   <u><em>Welded wires</em></u>      P(LK/M)=0.27   <em> </em><u><em>Assembly</em></u>

                           P(IC/F)=0.13     P(PWW/F)=0.52                            P(IA/M)=0.73              

This is the required tree diagram.

(c) Probability that a failure is due to loose keys is given by:

  P(LK) =P(LK/M) * P(M) {This means mechanical failure is due to loose  

                                               keys}

    P(LK) = 0.27 * 0.88 = 0.2376 .

(d) Probability that a failure is due to improperly connected or poorly welded

     wires is given by P(IC \bigcup PWW) ;

 P(IC \bigcup PWW) = P(IC) + P(PWW) - P(IC \bigcap PWW) { Here P(IC \bigcap PWW) = 0 }

 P(IC) = P(IC/F) * P(F)  = 0.13 * 0.12 = 0.0156

 P(PWW) = P(PWW/F) * P(F) = 0.52 * 0.13 = 0.0676

Therefore, P(IC \bigcup PWW) = 0.0156 + 0.0676 - 0 = 0.078 .

8 0
3 years ago
For f(x)=4x+1 and g(x)=x^2-5 find (g/f)(x)
Ipatiy [6.2K]

f(x)=4x+1\\\\g(x)=x^2-5\\\\(g/f)(x)=\dfrac{g(x)}{f(x)}=\dfrac{x^2-5}{4x+1}

6 0
3 years ago
Read 2 more answers
(4 + y = 19) what is y
Fiesta28 [93]
4 + y = 19

y = 19 - 4

y = 15
5 0
3 years ago
What are the expressions in factored form?<br><br> 6x^2 + 4x<br><br> 4x^2 + 11x + 6<br><br> 9x^2 - 4
Alexxandr [17]
<span>6x^2 + 4x = 2x(3x + 2)

4x^2 + 11x + 6 = (4x + 3)(x + 2)

9x^2 - 4 = (3x +2)(3x - 2)</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • In science class, Paul estimates the volume of a sample to be 37 mL. The actual volume of the sample is 39 mL. Find the percent
    8·1 answer
  • Keaton wrote the following paragraph proof for the Vertical Angles Theorem: The sum of angle 1 and angle 4 and the sum of angle
    9·2 answers
  • A leak in a water tank causes the water level to decrease by 3.6×10−2 millimeters each second. About how many millimeters does t
    10·1 answer
  • What is the largest number of consecutive integers whose sum is 2003?
    9·1 answer
  • Sam used his calculator to find cos 1.75. he wrote down cos 1.75 = .999. how could sam recognize that his answer is incorrect?
    11·1 answer
  • alisson separates her 23 stickers into 4 equal piles.how many stickers does she have left over? A27 B 19 C 5 D 3
    15·1 answer
  • Which figure is the image of ABCDE after a dilation centered at the origin with a scale factor of 2 and a reflection over the x-
    9·2 answers
  • Hep me again please willl give brainliest
    6·2 answers
  • Bro, I hate these questions.
    13·1 answer
  • Find the distance between (5,5) and (8,1)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!