Sanjay consulted three electricians about upgrading the wiring in his home. Each electrician uses a linear formula that incorporates a flat base fee and an hourly rate to determine the cost of service. Those formulas are shown in the table.

Repair Cost Formulas
Electrician
Cost in y dollars for an x-hour service
1
y = 25 x + 30
2
y = 30 x + 25
3
y = 25 x + 20

Which statement is best supported by the table?
Each electrician charges a different hourly rate.
Each electrician charges a different base fee.
All three electricians charge the same hourly rate.
All three electricians charge the same base fee.

Answers

Answer 1

Answer: B: each electrician charges a different base fee

Step-by-step explanation:

Answer 2

Answer:

b.Each electrician charges a different base fee:

Explanation:

Each of the equations has two parts:

1- base fee that is independent of any variable (this would be the number that has no variable next to it)

2- an hourly rate depending on the number of hours x (this would be the number that has an x next to it)

For the first electrician:

y = 25x + 30

base fee = $30

hourly rate = $25

For the second electrician:

y = 30x + 25

base fee = $25

hourly rate = $30

For the third electrician:

y = 25x + 20

base fee = $20

hourly rate = $25

Now, let's check the choices:

a.Each electrician charges a different hourly rate:

This is incorrect as electricians 1 and 3 charge the same hourly rate ($25)

b.Each electrician charges a different base fee:

This is correct as all three base fees are different ($30, $20 and $25)

c.All three electricians charge the same hourly rate:

This is incorrect as electrician 2 has a different hourly rate

d. All three electricians charge the same base fee:

This is incorrect as the base fees for the three electricians are different ($30, $25 and $20)


Related Questions

Robinson had 17 1/5 feet of wire. He used 9 ¼ feet of the wire to repair a broken fence. How many feet of wire were left? (Give answer in decimal form)

Answers

Answer:

7.95

Step-by-step explanation:

convert both numbers to decimals so 17.2 and 9.25 and just subtract so, 17.2-9.25=7.95

Triangle ABC with vertices A(9,13), B(12,11) and C(8,7) scale factor: K=2 center of dilation :(11,14)

Answers

The answer should be C

The final position of the triangle will be at  A"(7, 12), B"(1,-3) and C"(-3,-7)

Given the coordinate (x,y), if this coordinate is dilated by a factor of 2, the resulting coordinate will be (2x, 2y).

Given the coordinate of triangle ABC, A(9,13), B(12,11), and C(8,7), if these coordinates are dilated by a factor of 2, the resulting coordinates will be ats A'(18,26), B'(24,22) and C'(16,14)

If these coordinates are dilated along the centre (11, 14), the final position of the triangle will be at A''(18-11, 26-14), B"(12-11, 11-14) and C"(8-11, 7-14) which is  A"(7, 12), B"(1,-3) and C"(-3,-7)

Learn more on transformation here: https://brainly.com/question/16888151

how do I find angle k?​

Answers

Answer:

I believe (not confident) You take 180-28 and divide that by 2. (76 degrees)

We know that the top angle of the triangle is 28 degrees because vertical angles are congruent.

Step-by-step explanation:

Answer:

i think ?? CORRECT ME IF IM WRONG -check my user

Step-by-step explanation:

do an opposite angle to get the top of the left triangle so it will be 28

180-28=152

152÷2=76 (because its an isosceles)

ANSWER FAST ILL GIVE BRAINLIEST
1. is -50.1 rational or irrational
2. is -50/2 rational or irrational

Answers

Answer:

both are rational

Step-by-step explanation:

They are both represented as ab or a/b

PLS!!! HELP ME I WILL MARK U!!!

Answers

Answer:

Step-by-step explanation:

23.37

Answer:

-32.27

Step-by-step explanation:

[tex]n^{2}p +p[/tex]

First you have to substitute the values. (n = -1.9 and p = -7).

Substituting it would get to [tex](-1.9)^{2}(-7) + (-7)[/tex].

First you solve the exponent which would get it to [tex](3.61)(-7) + (-7)[/tex].

Then you would multiply to get it to -25.27 - 7.

That gets to -32.27.

Hope this helped! If not, please let me know! <3

How to solve and find all the missing points?

Answers

By using theorem of pythagorus and trig ratios

20. Find the perimeter of a rectangle with veticies A(-2, 6), B(-2,-1), C(3,6), and D(3,-1)

Answers

The answer to this problem is 35 :)

Answer:

35

Step-by-step explanation:

(-2,-1) to (3,-1) is 5 units which is the length, and (-2,6) to (-2,-1) is 7 units which is the height, so using the formula for perimeter: length x height, 5 x 7 = 35

Help!!!

Solve for x and y to satisfy both equations in the system:

{6x+y=252x−3y=25}

Answers

There can’t be two equal signs to do this

Answer:

6x+y=25

2x_3y=25

2(6x+y=25

6(2x_3y=25

12x+2y=50

12x_18y=50

20y=100

y=5

6x+y=25

6x+5=25

6x=20

x=3.33

simplify (2^5/3^2)^4 ( PLEASE HELP) !!!

Answers

Simplifying it down:

(10/6)*4

40/24

During a snowstorm, Eva tracked the amount on the ground. When the storm being, there was no snow on the ground. Snow feel at a constant rate of 3 inches per hour until 6 inches had fallen. The storm then stopped for 5 hours and then started again at a constant rate of 2 inches per hour for the next 2 hours. As soon as the storm stopped again the sun came out and melted the snow for the next 2 hours at a constant rate of 4 inches per hours

Answers

Answer:

2 inches of snow was left on the ground

Step-by-step explanation:

To calculate the amount of snow on the ground we can take it one step at a time. Since there was no snow on the ground we can start at a level of 0. Then it snowed until 6 inches of snow had fallen, so we can add that to our total.

0 + 6 = 6 inches

Next, it snowed for 2 more hours at a rate of 2 inches per hour, meaning we multiply this by 2 hours and add to the total amount of snow that was already on the ground.

(2*2) + 6 = 10 inches

Lastly, the sun came out and melted the snow on the ground for 2 hours at a rate of 4 inches per hour. Since it is melting the snow, this means that it is subtracting the snow from the total. So we would have to multiply the rate (4 inches per hour) by the number of hours and then subtract that from the amount of snow on the ground.

10 - (4*2) = 2 inches

PLZZ SOMEONE HELP I HAVE FIVE MORE MINUTES LEFT ON MY TEST TO ANSWER THIS ONE QUESTION

With compound interest, what happens when you start compounding more and more frequently? a. there is no correlation between compound interest and the computed value c. the computed value gets larger b. the computed value stays the same d. the computed value gets smaller Please select the best answer from the choices provided A B C D

Answers

Answer:

the computed value gets larger

Step-by-step explanation:

A square has an area of 289 cm2. What is the length of one side?

Answers

Answer:

144.5cm

Step-by-step explanation:

Since it's a square, all sides should be equal so you just need to divide 289 by 2(are of a square is side times side)

What does E=MC2 mean? Thanks.

Answers

Answer:    Energy equals mass times the speed of light squared.

Plz mark branliest:)

help plz i really need it

Answers

Answer:

I think translation then reflection

Step-by-step explanation:

If I have 20 apples and I eat 20, and a friend gives me 20 more, and I eat those 20 again, how many apples do I have in total?

Answers

Answer:

0

Step-by-step explanation:

If you have 20 apples and you eat 20, and a friend gives you 20 more, and you eat those 20 again, 20-20=0+20=20-20+0

0 apples lol :)

Have a good day

Using the Commutative Property
Use the commutative property to create equivalent expressions. Which expressions are equivalent to 227+35+9.82
Check all that apply.
3.5 +2.21 +9.8
0 3+2t +9
D 2.2 +3.5+ 9.81
9.8 +3.5+ 2.21
D 2.2t+ 9.8 +3.5
D 2.2t + 35.98

Answers

Answer:

3.5 +2.2t +9.8 and 9.8 + 3.5 + 2.2t and 2.2t + 9.8 + 3.5

Answer:

Option 1, Option 4, and Option 5.

Step-by-step explanation:

So it's 3.5 + 2.2t + 9.8 , 9.8 + 3.5 + 2.2t , 2.2t + 9.8 + 3.5. :)

please can someone smart help me,please do not answer if you dont know the answer,also answer all these questions please:).

Answers

Answer:

Number 7: 22.10 divided by 2.6 = 8.5  or 8.50 (depending on what your teacher prefers.

Step-by-step explanation:

Not sure about question 2 or 10

Which equation below has a POSITIVE SLOPE?
*
O y = -3x + 5
O y = 7 - 2x
O y = 8x + 1

Answers

Y=8x+1

-3x and -3x are both negative slopes

What is the missing number in the sequence below?

39, 24, 9, ____, -21

Answers

Answer:

-6

Step-by-step explanation:

The pattern here is that you substract 15 every time you move a number (left to right) , therefore: 9-15 = -6

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)

-5+(-7), i need to kno the answer

Answers

-12 is the right answer

Answer:

12

Step-by-step explanation:

first you add 5+7=12 but, it won't be negative because negative and negative cancel each other out making it positive 12 :)

match the equivalent equations please

Answers

Answer:

x + 7 = 14  //  x - 5 = 2  //  x - 9 = -2  //  3x - 15 = 6 … (x = 7)

2x - 1 = 7  //  2x - 5 = 3 … (x = 4)

2x - 3 = 3  //  2x + 5 = 11  //  4x + 2 = 14  //  2x + 1 = 7 … (x = 3)

12x - 3 = 24  //  4x - 1 = 8 … (x = 9/4)

I hope I helped! I apologize if I made a mistake.


Question 7 (1 point)
Maria has a bank containing nickels, dimes, and quarters. In all there are 22 coins totaling $2.55. The number of dimes is 4 less than the
number of nickels and quarters combined. Find the number of nickels, dimes, and quarters in Maria's bank. Type your answer in that order
using numbers only.
x= number of nickels
y number of dimes
z = number of quarters
Blank 1:
Blank 2:
Blank 3:

Question 8 (1 point)
Suppose you invested $5000 in three different funds for one year. The funds paid simple interest of 8%, 10%, and 7% respectively. The total
interest at the end of the year was $405. You invested $500 more at 10% than 8%. How much did you invest in the 10% fund?
x= money invested in 8% fund
y-money invested in 10% fund

Answers

Answer:

answer for 8 is 1500

Step-by-step explanation:

Which sum does the model below represent?

4 positive tiles and 7 negative tiles.
4 + (negative 7) = negative 3
4 + 7 = 11
8 + (negative 3) = 4
11 + (negative 4) = negative 3

Answers

The sum the model below represents will be 4 + (negative 7) = negative 3. Option A is correct.

What is an arithmetic operation?

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.

It is given that, the expression is 4 positive tiles and 7 negative tiles. We have to apply summation for the given expression,

Expression is the combination of constants and variables with mathematical operators.

The model is algebraically solved as,

=4+(-7)

= -3

Thus, the sum the model below represents will be 4 + (negative 7) = negative 3. Option A is correct.

Learn more about the arithmetic operation here:

brainly.com/question/20595275

#SPJ6

it is 35 degrees Celsius at your school and 90 degrees farenheit at home. where is the tempature higher?​

Answers

Answer:

90 is higher

Step-by-step explanation:

The school is a higher tempature (warmer) than your home.
Hope this helps! It helps me if u mark me as brainliest :)

Your house is located at point T. Your grandma's house is located at point V. U is the midpoint of segment TV. How far do you need to travel to drive home from your grandma's house?

Answers

6:11111111 dudududhdhdud r

Cell theory has three parts: The cell is the basic unit of life in all living things, all cells come from existing cells, and ______________.
A.
nonliving things are composed of cells
B.
the cell was discovered by Robert Hooke
C.
all organisms are made of one or more cells
D.
all cells are microscopic in size
---
this is not math lol it's science
---
don't answer if ur not sure pls

Answers

Answer:

C.

Step-by-step explanation:

All living things are made of one or more cells.

Can I get brainliest pls?

A circle is translated 4 units to the right and then reflected over the x-axis. Complete the statement so that it will always be true of the circle at the new location.

The circle at the new location has the original circle.
the same center as
twice the circumference of
half the radius of
the same area as

Answers

Options

The circle at the new location has _____________ the original circle.

- the same center as

- twice the circumference of

- half the radius of

- the same area as

Answer:

the same area as

Step-by-step explanation:

When a circle is translated and reflected, the center of the circle will change; however, its area, circumference, radius and diameter remain the same.

This is so because, translation and reflection only affect the positioning of the circle not the size.

Considering the above analysis, we can conclude that option d answers the question correctly.

Answer:

the same area as

In parallelogram RSTV, diagonals RT and VS intersect at Q. If RQ = 5x + 10 , QT = 20 and QS = 3x+ y and QV = 30 . Find x and y

Answers

Ccchchlxtxtoxyocotsifuguf

Can someone help me with this

Answers

Answer:

Angle 3 is 65°, Angle 8 is 115°

Step-by-step explanation:

Angle 3 and 1- Linear Pair

Angle 8 and 1- Alternate Exterior

if a rock is soft and the color blue is red then my is a car driving a fish then why are my shoes untied?

Answers

Answer:

tuff

Step-by-step explanation:

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