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
Gemiola [76]
3 years ago
9

An item sells for 40$ tha sales tax on the item is 8 % what is the sales tax an total cost

Mathematics
2 answers:
artcher [175]3 years ago
7 0

Answer:

5

Step-by-step explanation:

balandron [24]3 years ago
6 0

The sales tax is $3.2 and total cost is $ 43.2

Solution:

Given, An item sells for 40$  

And sales tax on the item is 8 %  

We have to find what is the sales tax and total cost

Now, we know that, sales tax = 8% of selling price  

\begin{array}{l}{\text { Sales tax }=\frac{8}{100} \times \text { selling price }} \\\\ {\text { Sales tax }=\frac{8}{100} \times 40} \\\\ {\text { Sales tax }= 3.2}\end{array}

Now, sales tax = $ 3.2, then,

<em>Total final cost = selling price + sales tax </em>

Total cost = 40 + 3.2

Total cost = $ 43.2

Hence, sales tax and total cost are $3.2 and $43.2 respectively.

You might be interested in
Aeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Kobotan [32]

Answer:

oooooooffff

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which of the following statements is true?
Kay [80]

Answer:

B. 2^0 = 1

Step-by-step explanation:

here

A.) |-14|=14 & also |14|=14   so  right ans |-14|=|14|

C.) 4.1*10-3=38 (4.1 * 10 = 41 & 41-3= 38)  <u>38 > 0.041</u> but i dont know i think this is also true its also written as 38>= 0.041 maybe printing mistake

D.) squareroot of 20 = 4.4 something is > 4

and any no like 3^0= also 1,

4^0=1

5^0=1

ans is

B.) 2^0 = 1 is true

5 0
3 years ago
Determine the length and conductivity of a wire with diameter 4.2 mm constructed from an alloy of resistivity 3.2 x 10^-8 ohms-m
xz_007 [3.2K]

Answer:

1) L = 3.465 × 10^2; 31250000 S/m

2) terminal pd = 11V

3) ₦2

Step-by-step explanation:

1)

diameter of wire (d) = 4.2mm = 4.2 × 10^-3m

resistivity 3.2 x 10^-8 ohms-meter

Resistance(R) = 0.8 ohms

Area of wire (A)= πd^2 / 4

A =[ ( 22/7) * (4.2×10^-3)^2] / 4

A = [22/7 * 17.64×10^-6] / 4

A = 13.86×10^-6m^2

Recall:

Resistivity = (R ×A) / Length

Length = (R × A) / resistivity

Length(L) = [(0.8)(13.86×10^-6)] / 3.2 x 10^-8

L = (11.088 × 10^-6) / 3.2 x 10^-8

L = 3.465 × 10^2

Conductivity = 1/resistivity

Conductivity = 1/3.2 x 10^-8

Conductivity = 31250000 S/m

2)

Series resistor = 1.5 and 4.0 ohms

e.m.f (E) = 12V, internal resistance 'r' = 0.5

Recall :

I = E / (R + r)

Where I = current

R = circuit resistance

R = Rs = 1.5 + 4.0 (series connection) = 5.5

Recall : I = V/R

Where V = voltage ( terminal pd)

Therefore,

V/R = E/(R+r)

V/5.5 = 12/(5.5 + 0.5)

V/5.5 = 12/6

V/5.5 = 2

V = 5.5 × 2

V = 11V

3) power = 100W, t =10 hours

Energy consumed = power × time

Energy consumed = 100W × 10 hrs = 1000Whr

Recall: 1 KW = 1000 W

Therefore, energy consumed = 1KW

Cost of energy per KW = ₦2

Therefore, cost of lightning the lamp = ₦2 × 1KW = $2

4 0
4 years ago
Help hell help help gelp help
IgorC [24]
Just read what it says not that hard go to the left twice and go up 4 units.

Hope you have a good day
3 0
3 years ago
Someone please help​
dedylja [7]

Answer:

1. y = -2x + 5

2.  y = 3/5x + 5

3. y = -4/5x - 4

4. y = - 1

5. yes

6. yes

7. yes

8. no

Step-by-step explanation:

1.   (4,-3) parallel to y= -2x

     -3 = -2(4)+b

     b=5

2. (-5,2) parallel to y = 3/5x

    2= 3/5(-5)+b

     b=5

3. (-5,0) -4/5x

   0 = -4/5(-5)+b

    b = -4

4. (-4,-1)

    y= -1

5. yes

6. yes

7. yes

8. no

  • Same slope = parallel ex. y = -5x +7, y = -5x +12
  • opposite reciprocal  = perpendicular ex. y = -5x +7, y = 1/5x + 12
  • to find "b" with slope and point

          (x,y)  y = mx + b

          plug in the y value and x value in the eqaution and m=slope, solve for b

7 0
3 years ago
Other questions:
  • If x+1 and x-1 are the factors of the polynomial ax^3 + x^2 - 2x +b,find the values of a and b
    11·1 answer
  • The square shown is composed of smaller equally-sized squares. The shaded section has an area of 9/25 square inches. What is the
    15·1 answer
  • The picture is attached below
    14·2 answers
  • 10 points
    6·1 answer
  • A motorbike travels 45 miles in 15 minutes, what is its speed ???? help ASAP please
    8·2 answers
  • The water level in a reservoir increased 52 meters. If this was a 23% increase,
    14·1 answer
  • A cookie company sells a box of cookies that weighs 24 ounces. The company states that the acceptable percent error in filling t
    15·1 answer
  • HELP PLEASE!! Brainliest to whoever gets it right.
    14·2 answers
  • Start a conversation with me
    9·2 answers
  • I really need help fast!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!