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
Arada [10]
3 years ago
5

Two factory plants are making TV panels. Yesterday, Plant A produced 8000 panels. One percent of the panels from Plant A and 4%

of the panels from Plant B were defective. How many panels did Plant B produce, if the overall percentage of defective panels from the two plants was 3% ?
Mathematics
1 answer:
Over [174]3 years ago
8 0
8000 from plant A with 1% defective
x        from plant B  with 4% defective
8000 + x = y           with 3% defective

da/a = 0.01 -> 80 = da 
db/b = 0.04 -> db = 0.04b
(da+db)/(a+b) = 0.03

(80+b*0.04)/(8000+b) = 0.03
80+b*0.04 = 0.03*(8000+b)
80+b*0.04 = 240 + 0.03b
80 - 240 = 0.03b - b*0.04
-160 = -0.01b
b = 160/0.01
b = 16000

the panels from the plant b were 16000 


You might be interested in
X=-2y-3 4y-x=9 determine the point of intersection of each pair of lines if one exists. ​
Drupady [299]

Answer: (-5,1)

Step-by-step explanation:

x=-2y-3

4y-x=9

4y-(-2y-3)=9

4y+2y+3=9

6y+3=9

6y=6

y=1

x=-2y-3

x=-2-3

x=-5

8 0
3 years ago
What's the answer plz help?
UNO [17]
I hope this helps you

6 0
2 years ago
What are the verter and x-intercepts of the graph of the function given below?<br> y=x2-2x-35
horsena [70]

For x intercepts, plug in 0 for y.

               0 = (x^2) - 2x - 35

*factoring* = (x-7)(x+5)

x intercepts = 7,-5

As for the vertex, you can use the equation -b/2a for the x-coordinate of the vertex

so,

x = -b/2a = -(-2)/2 = 1

then just find the y value by plugging it back in to the equation.

y = ((1)^2) - 2(1) - 35

= -36

so, vertex is at (1,-36)

5 0
3 years ago
Sixty nine percent of U.S households play video or computer games. Chose 4 heads of households at random. Find the probability t
leva [86]

Answer: 1*(69/100)^0*(31/100)^4 = 0.0092 or 0.0092*100 = 0.92%

6 0
3 years ago
Read 2 more answers
Seth's father is thinking of buying his son a summer movie pass for $30 dollars. With the pass, matiness cost $4 each.
PilotLPTM [1.2K]

Answer:

Seth saved $90.

Step-by-step explanation:

1.Find out how much would be spent without buying the movie pass.

Multiply the amount of money that one would spend for each movie, by the number of movies one saw.

8 * 30 = 240

2.Find out the amount that was actually spent

Multiply the amount that was actually spent on each movie, by the number of movies that were seen. Then add the additional cost of the pass.

(4 * 30) + 30

= 120 + 30

= 150

3. Find the difference between the two values.

Subtract the amount that one was supposed to spend by the amount one did spend.

240 - 150

= 90

3 0
2 years ago
Other questions:
  • # 11 Q . please solve the diagrama
    10·2 answers
  • Maggie answered 20 out of 25 questions correctly on a math test. What percent of the questions did she answer correctly?​
    13·2 answers
  • HEEEEEEEEEEEEELLLLLLLLLLLLLP!!!!!! PLZZZZZZZZ
    11·1 answer
  • Someone please help!!! Look at the attachment
    13·1 answer
  • Find the value of n in the equation 6.2n – 3.7n = 85 + 45.
    6·1 answer
  • 12 + x + 14 wat is x
    9·2 answers
  • 29/1000
    12·1 answer
  • -9(y+12)=4(-7y-8)<br> Solve for y
    12·1 answer
  • Write an equation in slope intercept form for the line that has a slope of 1/4 and passes through the point (0, -2)
    5·1 answer
  • How many faces, edges and vertices does the shape below have?<br> Faces: <br> Edges: <br> Vertices:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!