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
Oksanka [162]
3 years ago
14

Kara has 21 collectible buttons to sell. She sells the small buttons for $3 and the large buttons for $4, and earns a total of $

68. If the small buttons are represented by x and the large buttons are represented by y which of the following systems of equations can be used to calculate the number of large and small buttons sold.
Answers
x+y=21,3x+4y=68
x+y=68, 3x+4y=21
x+y=21, 4x+3y=68
x+y=68, 4x+3y=21
Biology
2 answers:
Andre45 [30]3 years ago
7 0

Answer: x+y=21, 3x+4y=68

Explanation:

Here x represents the number of small button and y represents the number of large button,

And, According to the question,

Total number of button = 21

Thus,  x + y = 21

Also, She sells the small buttons for $3 and the large buttons for $4, and earns a total of $68

That is,   3x + 4y = 68

Thus, the system of equations that can be used  to calculate the number of large and small buttons sold are,

x + y = 21,  3x + 4y = 68

First Option is correct.


gayaneshka [121]3 years ago
7 0
x+y=21\\3x+4y=68
You might be interested in
What abiotic factors in the grasslands affect the zebra
Murrr4er [49]
Abiotic means not alive like rocks and soil. Abiotic Factor that affect the zebras in the grasslands is: water
Still trying to figure out the other abiotic factors.
6 0
3 years ago
A muslim client is scheduled to be discharged in 2 days, but insists on fasting until after dark. the nurse anticipates which ex
nignag [31]
<span>The nurse should anticipate that the client will say "my religion requires me to fast all day until sunset." Muslims fast during the entire lunar month of Ramadan, but this doesn't mean eating nothing for thirty days. Muslims observe Ramadan by fasting during daylight hours, and eating a meal called Iftar just after sunset and a meal called Sahur right before sunrise.</span>
6 0
3 years ago
Burning fossil fuels releases CO2 into the atmosphere. What potential threat can it cause to earth
Otrada [13]
CO2 traps heat in the atmosphere of the earth which leads to global warming because of the green house effect
8 0
3 years ago
Read 2 more answers
Please help me. I have a big test on Monday that covers 4 chapters. You will get 99 points if you answer this question and if yo
chubhunter [2.5K]
Hold on I can help you with this it's gonna take me maybe 10-20 min
7 0
3 years ago
Read 2 more answers
Which are examples of biotic factors? Select three options
denpristay [2]
A, D, and F because if biotic once it dies it doesnt lose the biotic factor.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Organisms in the same ecosystem are all _______.
    5·2 answers
  • The primary cardiac marker which is the most recommended by the AHA and known to be the most specific to indicate a potential MI
    12·1 answer
  • Why are accepted scientific ideas reliable?
    15·1 answer
  • What kind of animal tissue functions in the support and linking of other tissues
    10·1 answer
  • Which came first 1. Atlantic Oceans begin to form
    10·1 answer
  • When Engelmann exposed photosynthetic algae to light in the presence of aerobic bacteria, he found that some wavelengths of ligh
    9·1 answer
  • An energy pyramid is composed of oak trees, rabbits, snakes, and eagles. The producers receive 100% of the total energy from the
    15·1 answer
  • A student claims that the only difference between prokaryotic cells and eukaryotic cells is that eukaryotic cells have a nucleus
    15·1 answer
  • A wave with a large wavelength will have a _____________ frequency and __________energy.
    5·1 answer
  • Which of the following statements is a principle of the cell theory that supports the idea that new cell will replace damaged ce
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!