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
xeze [42]
3 years ago
5

What is the average cost of 7 articles if 3 of them cost 30k each and the rest cost 12.5k each ​

Mathematics
1 answer:
LenKa [72]3 years ago
5 0

{\bold{\red{\huge{\mathbb{QUESTION}}}}}

what is the average cost of 7 articles if 3 of them cost 30k each and the rest cost 12.5k each

\bold{ \red{\star{\blue{GIVEN }}}}

TOTAL NUMBER OF ARTICLE= 7

ARTICLES FOR 30K = 3

ARTICLES FOR 12.5K = 7-3= 4

\bold{\blue{\star{\red{TO \:  \: FIND}}}}

Average cost of 7 articles

\bold{  \green{ \star{ \orange{FORMULA \:  USED}}}}

\red{AVERAGE  =  \frac{TOTAL \:  COST}{ NUMBER  \: OF\: ARTICLES }}

\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}

Average \:  cost  \: of  \: 7  \: articles -  >  \\  \frac{(3 \times 30k) + (12 .5k \times 4)}{7}  \\  \frac{90k + 50k}{7}  \\  \frac{140k}{7}  \\  \blue {Average \:  cost  \: of  \: 7  \: articles -  >} \\ 20k

You might be interested in
Crystal earns $5.50 per hours mowing lawns. Write a rule to describe how the amout of money m earned is a function of the number
ra1l [238]
She earns $5.50 for every hour so:
m = 5.5h
3 hours and 45 minutes is 3.75 hours.
m = 5.5(3.75)
m = 20.625
After rounding, she earns $20.63.
4 0
4 years ago
Solve the equation for the y-value and choose whether it is a direct variation or inverse variation.
Leona [35]

\\ \sf\longmapsto xy=7

  • Take x to right and divide

\\ \sf\longmapsto y=\dfrac{7}{x}

Hence

.\\ \sf\longmapsto y\propto \dfrac{1}{x}

Inverse variation

7 0
2 years ago
At noon, a submarine was located at 5 12 meters below
Cerrena [4.2K]
-512 is the answer because 512 is a negative solution in Integers math
7 0
3 years ago
Fully explain why an inefficient resource allocation leads an economy to produce at a point inside its production possibilities
Stella [2.4K]
Production possibilities frontier, PPF, is defined as a representation of the point at which a country’s economy is most efficiently producing its goods and services. Efficient production means allocating its resources in the best way possible.
<span>
The points in the PPF shifts outward. The more efficient production is the more the PPF shifts outward. With this in mind, any point found inside the PPF means that there is inefficient resource allocation. If the PPF shifts inward, it means that the efficiency production is regressing and available resources are not fully used to its potential which will lead to a downward turn of the economy. 


</span>
6 0
3 years ago
Help will give brainlyist
denpristay [2]

Answer:

1. 25%

2. 150%

3. 3%

4. 75%

5. 60%

6. 210%

7. 10%

8. 1%

9. 40%

10. 87.5

11. 105%

12. 2%

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is 9 more than the product of five and a number "n" written as an algebraic expression
    6·2 answers
  • What is the y-intercept of y=7
    7·2 answers
  • A bag contains 25 cents and 50 cent coins whose total value is $30 if the number of 25 cent coins is four times that of 50 cent
    5·2 answers
  • 4. What is the y-intercept of the line
    14·1 answer
  • Which expression is equivalent to 5^3 select all that apply
    14·1 answer
  • Find the domain of the function.
    8·1 answer
  • What ordered pair is a solution of this equation 3x-7y=28<br><br><br> help
    6·1 answer
  • The sum of two numbers is eleven. one number is seven less than the other. find the numbers
    10·1 answer
  • One container has 28 kilograms of flour and another has 4 kilograms. How many kilograms must be taken from one container, so eac
    14·2 answers
  • What is the solution to the equation 5 x + 2 x = 24 − 4 ( x − 5 ) ?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!