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
patriot [66]
2 years ago
9

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? (5 points)
Mathematics
1 answer:
Nostrana [21]2 years ago
5 0
System of equations that can be used to solve for both x and y are:
x + y = 21 (since she sold 21 all together)
3x + 4y = 68 (cost of each and total earned)
You might be interested in
Select the correct answer.
Nataly [62]

Answer:

D. Part of the solution region includes a negative number of erasers purchased; therefore, not all solutions are viable for the given situation.

Step-by-step explanation:

I got it right on the practice

7 0
3 years ago
= 2 - 4
jekas [21]

Answer:

Please find attached the required inverse of a function chart

Step-by-step explanation:

The inverse of a function is found by reversing the operations of the  function

The inverse of the function f(x) = 2·x - 4 is found as follows;

x = 2·x - 4

x + 4 = 2·x

x = (x + 4)/2 = x/2 + 2

Therefore, the inverse of the function f(x) = 2·x - 4 is f(x) = x/2 + 2

The inverse function is plotted by generating data points as follows;

{}x         {}          f(x)

0                2

1                  2.5

2                 3

3                  3.5

4                   4

5                   4.5

6                   5

7                   5.5

8                   6

9                   6.5

10                  7

11 {}                   7.5

12{}                    8

13                 8.5

14                  9

15                  9.5

16               10

5 0
3 years ago
Lily has walked 2 miles. Her goal is to 6 miles. Lily plans to reach her goal by walking 3 miles each hour h for the rest of her
suter [353]

Step-by-step explanation:

if she did that she would have walked 36 miles multipy all of the numbers and theres ur answer i think i am so tired so if its wrong i am sooo sorry i havent slept in two days.... hope u have a better day than mine

4 0
3 years ago
What is the answer A, B, C, or D
adell [148]

The answer would have to be

D


7 0
3 years ago
126/21 The simplest form
Marina CMI [18]

\dfrac{126}{21} = \dfrac{2 \times 3 \times 3 \times 7}{3 \times 7} = 6

Answer: 6

8 0
2 years ago
Other questions:
  • What are the solutions to the following system of equations?<br> y = x2 + 12x + 30<br> 8x – y = 10
    13·1 answer
  • Which equation can be used to find one-tenth of 119.9
    14·1 answer
  • Kathy John Barbara Dominic and Troy want to go to a concert but they only have 3 tickets. If they decide to select randomly who
    8·1 answer
  • 40 points of you can answer this question. What is the volume of a hemisphere with a radius of 8
    14·1 answer
  • Solve the equation Z-19=34
    14·1 answer
  • Is -7 + 9= 9 + 7 true, false or open
    8·2 answers
  • Please helpy geometry. And the ones checked are probably wrong
    5·1 answer
  • Dr. Anderson found that 18 out of 30 children in the village tested positive for chicken pox. At this rate, how many would test
    9·1 answer
  • Look at the following numbers:
    15·2 answers
  • Slow and steady wins the race. The leatherback sea turtle is the fastest known reptile, with a maximum speed of 21.9221.9221, po
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!