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
kvasek [131]
3 years ago
6

The production cost, represented by y, of smart phone devices are equal to the product of computing components (a) and the squar

e of the number of devices (x), added to the produ of labour (b) and number of devices (x)after which savings on reusable material (c) are subtracted. 2.1 Write down an equation to represent the production cost (y) in terms of a. x, b and c. 2.2 Change the subject of the equation/formula in 2.1 to: 2.2.1 a= 2.2.2 b = 2.2.3 = 2.3 Determine the production cost of 7 devices, if labour amounts to R4 140, computin components cost is R 1 035 and the savings on reusable material is R 1 725.​
Mathematics
2 answers:
abruzzese [7]3 years ago
5 0

Answer:

2.1 y= ax^2 + bx -c

2.2

2.2.1 a= (y+c-bxz)/x^2

2.2.2 b= (y+c-ax^2)/x

2.2.3 c= ax^2+bx-y

2.2.4 R 77690

Step-by-step explanation:

You are told that the production cost y = computing concepts(a) * number of devices(x) squared + product of labour (b)* number of devices - savings on reusable material (c)

Thus 2.1 y= ax^2 +bx-c

For 2.2 Just solve for the correct variable using our function y, hence we solved for a, b, and c in terms of y.

2.3 x=7, a=R1035, b=R4140, c=R1725

From 2.1 y= ax^2 + bx -c

Substitute the following to our function y

y= (R1035)(7)^2 + (R4140)(7)- R1725

=R77 690

Marta_Voda [28]3 years ago
3 0

The production cost is an illustration of a quadratic function

<h3>How to determine the equation</h3>

We have the following parameters:

  • Computing components (a)
  • Number of devices (x),
  • Labor (b)
  • Savings on reusable material (c)

Using the instructions in the question, the equation of the production cost would be:

y =ax^2 + bx -c

Hence, the production cost is y =ax^2 + bx -c

<h3>Change the subject of the equation</h3>

In (a), we have:

y =ax^2 + bx -c

Subtract bx - c from both sides

y - bx + c = ax^2

Divide through by x^2

a = \frac{y - bx + c}{x^2}

Hence, the equation that represents the computing component is a = \frac{y - bx + c}{x^2}

Read more about equations and functions at:

brainly.com/question/1214333

You might be interested in
What is y-2=-3x(x-7) written in standard form?
Len [333]

Answer:

The equation in standard form is  

2

3

x

−

y

=

7

.

Explanation:

The standard form for a linear equation is  

A

x

B

y

=C

, where  

A

,

B

,

and

C

are numbers, and  

x

and

y

are variables.

y

=

2

3

x

−

7

Subtract  

2

3

x

from both sides of the equation.

−

2

3

x

+

y

=

−

7

Multiply both sides by  

−

1

.

2

3

x

−

y

=

7

A

=

2

3

,

 

B

=

−

1

,

 

C

=

7

8 0
3 years ago
Todd is painting a banner on a wall in the cafeteria. The banner is in the shape of a rectangle and has a blue background. Todd
anastassius [24]
Well todd cant use all of the paint because that would be just waisting it because he has enough paint to cover the banner
6 0
3 years ago
What is -4 2/3 as a decimal with work
Luba_88 [7]

The decimal equivalent is -4.666....

In order to find this, we need to start by just taking the whole number for itself.

-4.

Now we have to handle the fraction version. In order to do that, we need to do the division and turn into a decimal.

2/3 = .666...

Now we simply put them together and get our answer.

-4.666...

6 0
3 years ago
PLEASE HELP ME!!! THE RIGHT ANSWER WILL GET THE BRAINIEST!
Lina20 [59]

Answer:

\sf D) \quad s=8 \frac{1}{4}t

Step-by-step explanation:

  • t  = time (in hours) → this is the independent variable
  • s = total area cleaned (in square feet) → this is the dependent variable (as the number of square feet cleaned depends on the number of hours worked)

Therefore, if the rate of cleaning is 8 1/4 square feet per hour, the relationship between s and t is:

\sf s=8 \frac{1}{4}t

8 0
2 years ago
Chloe has $15 to spend on pencils. Each box of pencils costs $2. How many
Scorpion4ik [409]
Chloe can buy 7 pencil boxes and have 1 dollar left
3 0
3 years ago
Other questions:
  • 12 to x and 4 to 117
    13·1 answer
  • Help me please???????????????????
    15·1 answer
  • F john can drink one barrel of water in 6 days, and mary can drink one barrel of water in 12 days, how long would it take them t
    13·1 answer
  • What are two numbers that add to three and multiply to two
    6·2 answers
  • Please answer all of these questions for me, it would mean the world to me!
    15·2 answers
  • What is the unit rate, expressed in kilometers per minute?
    14·1 answer
  • Pls help
    5·1 answer
  • Please help me figure these out! Thanks!
    6·1 answer
  • Solve the inequality 4x - 7 &lt; 5
    10·2 answers
  • Which expression is equivalent to x+2x+y+2y<br><br> 3x3y<br> 3x+3y<br> 3+xy<br> 6xy
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!