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
wolverine [178]
2 years ago
15

You wish to buy a new set of strings for your guitar. You phone five different

Mathematics
2 answers:
Novosadov [1.4K]2 years ago
8 0

Answer:

215,00.

Step-by-step explanation:

Average price = 22500

18000*2 + 28000 + 27000 + x = 22500*5

91000 + x = 112500

X = 21500

Licemer1 [7]2 years ago
6 0

Answer:

R215,00

Step-by-step explanation:

Let x = amount the 5th music shop charges for the strings

\sf mean=\dfrac{\textsf{sum of all the numbers}}{\textsf{amount of numbers}}

\implies \sf 225=\dfrac{180+180+280+270+x}{5}

\implies \sf 225\cdot 5=910+x

\implies \sf 1125=910+x

\implies \sf x=1125-910

\implies \sf x=215

Therefore, the fifth music shop charged R215,00 for the strings.

You might be interested in
How many times does 22 go into 53?
dexar [7]

Answer:

It only goes into it twice.

The decimal form is 2.40909091

6 0
3 years ago
Read 2 more answers
A savings account accrues interest at a rate of 3.0% yearly. If someone opens an account with $2,500, how much money would the a
Sauron [17]
3\%=\frac{3}{100}=0,03\\\\
First\ year:2500+2500*0,03=2500+75=2575\\\\Second\ year:\ 2575+2575*0,03=2575+77,25=2652,25\\\\Third\ year:\ \ 2652,25+2652,25*0,03=2652,25+79,5675=\\\\2731,8175\\\\ Fourth\ year: 2731,8175+2731,8175*0,03=2731,8175+81,954525\\\\=2813,772025\\\\Fifth\ year:\ 2813,772025+2813,772025*0,03=\\\\2813,772025+84,41316075=2898,18518575\$
5 0
4 years ago
The value of a book is $150 and decreases at a rate of 4% per year. Find the value of the book after 12 years
nevsk [136]
If it decreases at 4% every year, then its value becomes:

100% - 4% = 96% = 96/100 = 0.96

At the end of the 1 year its value becomes:  150*(0.96)

At the end of the 2 years its value becomes:  150*(0.96)*(0.96) = 150*(0.96)²

At the end of the 3 years its value becomes:  150*(0.96)*(0.96)*(0.96) = 150(0.96)³

So similarly at the end of 12 years, its value becomes 150*(0.96)¹²

=50*(0.96)¹²    simplify with calculator.

<span>≈ 91.91

Value at the end of 12 years becomes ≈ $</span><span>91.91

I hope this helps.
</span>
8 0
3 years ago
Which of the values of m and b will create a system of equations will infinitely many solutions y=mx+b ,y=-2x+4
Mrac [35]

I hope and useful for your help

7 0
3 years ago
Julie Meyer is the manger for Ace trucking company.during December she worked 165 hours earning 27 an hour.what was her straight
OlgaM077 [116]
The answer is 4,455. 27×165=4,455.
8 0
4 years ago
Read 2 more answers
Other questions:
  • The model represents an equation. What value of x makes the equation true?
    12·2 answers
  • 3.) Forty percent of a number is equal
    9·1 answer
  • -845 degree coterminal angle
    13·1 answer
  • How long would it take to travel 425 m at the rate of 50
    13·2 answers
  • Soulotion to equation if y is =15 when x=2 ,find y when x=8
    10·1 answer
  • Determine how many ways the family could have had one boy and 3 girls. 
    15·1 answer
  • How do you divide fractions
    11·2 answers
  • 1.2.and 3 please due in a hour
    13·2 answers
  • [geometry] i got 267.94 but how do i answer that in fraction?
    11·1 answer
  • What's the answer to this math problem?<br><br><br> 3c+2= −10
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!