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
Alenkasestr [34]
3 years ago
14

An electrician uses the function f(x) = 60 + 40x to calculate the total cost, in dollars, for a service call that takes x hours

to
complete. What does the coefficient 40 represent?
A)
The electrician works 40 hours.
B)
The electrician charges $40 per hour.
Eliminate
The electrician drives 40 miles to work.
D)
The electrician charges a $40 trip charge.
Mathematics
1 answer:
zloy xaker [14]3 years ago
3 0

Answer:

(B) The electrician charges $40 per hour.

Step-by-step explanation:

Total cost=fixed cost + variable cost

F(x)=60+40x

Fixed cost =60

Variable cost=40x

x=hours of service

40=40 dollar per hour charge

The coefficient 40 represent the electrician charge of $40 per hour

(B) The electrician charges $40 per hour.

You might be interested in
Plz help i'll give thanks and brainliest
yan [13]
I believe it is D if i’m correct
3 0
3 years ago
Number when multiplied by 0.5?<br> Which number produces a rational
Vladimir79 [104]
I don’t really know what your asking but anything multiplied by 0.5 or .5 is going to be half of that number
Example 2•.5=1

I don’t know if this is what you were asking, but I hope this helps
6 0
2 years ago
18. During a sale, cameras were discounted 30% from their original price of $295.99. How much was each camera during the sale to
attashe74 [19]

Answer:

207.19 is the cost on sale

Step-by-step explanation:

If there is a discount of 30%, we still have to pay 100-30 = 70%

295.99 * 70%

295.99 * .70

207.193

Rounding to the nearest cent

207.19 is the cost on sale

6 0
3 years ago
Read 2 more answers
A cell phone company offers two plans to its subscribers. At the time new subscribers sign up, they are asked to provide some de
slavikrds [6]

Answer:HI

Step-by-step explanation:HI

3 0
2 years ago
In a certain region, about 6% of a city's population moves to the surrounding suburbs each year, and about 4% of the suburban po
Sedbober [7]

Answer:

City @ 2017 = 8,920,800

Suburbs @ 2017 = 1, 897, 200

Step-by-step explanation:

Solution:

- Let p_c be the population in the city ( in a given year ) and p_s is the population in the suburbs ( in a given year ) . The first sentence tell us that populations p_c' and p_s' for next year would be:

                                  0.94*p_c + 0.04*p_s = p_c'

                                  0.06*p_c + 0.96*p_s = p_s'

- Assuming 6% moved while remaining 94% remained settled at the time of migrations.

- The matrix representation is as follows:

                         \left[\begin{array}{cc}0.94&0.04\\0.06&0.96\end{array}\right] \left[\begin{array}{c}p_c\\p_s\end{array}\right] =  \left[\begin{array}{c}p_c'\\p_s'\end{array}\right]          

- In the sequence for where x_k denotes population of kth year and x_k+1 denotes population of x_k+1 year. We have:

                         \left[\begin{array}{cc}0.94&0.04\\0.06&0.96\end{array}\right] x_k = x_k_+_1

- Let x_o be the populations defined given as 10,000,000 and 800,000 respectively for city and suburbs. We will have a population x_1 as a vector for year 2016 as follows:

                          \left[\begin{array}{cc}0.94&0.04\\0.06&0.96\end{array}\right] x_o = x_1

- To get the population in year 2017 we will multiply the migration matrix to the population vector x_1 in 2016 to obtain x_2.

                          x_2 = \left[\begin{array}{cc}0.94&0.04\\0.06&0.96\end{array}\right]\left[\begin{array}{cc}0.94&0.04\\0.06&0.96\end{array}\right] x_o

- Where,

                         x_o =  \left[\begin{array}{c}10,000,000\\800,000\end{array}\right]

- The population in 2017 x_2 would be:

                         x_2 = \left[\begin{array}{cc}0.94&0.04\\0.06&0.96\end{array}\right]\left[\begin{array}{cc}0.94&0.04\\0.06&0.96\end{array}\right] \left[\begin{array}{c}10,000,000\\800,000\end{array}\right] \\\\\\x_2 = \left[\begin{array}{c}8,920,800\\1,879,200\end{array}\right]

5 0
3 years ago
Other questions:
  • Which of the following should one consider when choosing a career
    10·1 answer
  • What is the height of the triangle? A) 17 units B) 34units C) 51units D) 68units <br><br> Help??
    7·1 answer
  • The sum of the measures of the angles of a triangle is 180. The sum of the measures of the second and third angles is four times
    9·1 answer
  • Colton is filling 5 aquariums with water. Each aquarium needs 72 gallons of water. About how many gallons of water are needed to
    6·1 answer
  • A triangle is formed from the points L(-3, 6), N(3, 2) and P(1, -8). Find the equation of the following lines:
    5·1 answer
  • 7-5.419 help me quickly​
    7·1 answer
  • 3 Danica simplified tre following expression,
    11·1 answer
  • I need this immediatly <br>will give brainliest
    8·2 answers
  • Michael had $550 in his savings account. He took out $30.75 every month for one year. What is the net change in Michael’s accoun
    6·2 answers
  • 2/3 + 2/9 + 2/27= it’s i just adding fractions but I wanna make sure it is correct. So if you know the answer could you let me k
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!