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
kirza4 [7]
2 years ago
9

The pairs of numbers below represent the price of different

Mathematics
1 answer:
Ymorist [56]2 years ago
4 0

Answer:

Option C: 2 books for $14, 5 books for $35

Step-by-step explanation:

A proportional relationship between two quantities would always have a constant of proportionality. Thus,

Constant of proportionality, k = y/x

In this case,

x = quantity of books

y = price

Let's see which pair will have a constant of proportionality:

Option A: 4 books for $24,8 books for $40

24/4 = 6;

40/8 = 5.

No constant of proportionality.

Option B: 5 books for $25, 6 books for $36

25/5 = 5

36/6 = 6

No constant of proportionality.

Option C: 2 books for $14, 5 books for $35

14/2 = 7

35/5 = 7

Constant of proportionality, k = 7.

This pair represents a proportional relationship.

Option D: 3 books for $15, 7 books for $28

15/3 = 5

28/7 = 4

No constant of proportionality.

You might be interested in
An 8-sided fair die is rolled twice and the product of the two numbers obtained when the die is rolled two times is calculated.
Mumz [18]

Answer:

See below

Step-by-step explanation:

When you roll an 8-sided die twice, the sample space is the set of all possible pairs (x,y) where x is the first outcome and y is the second outcome.

The sample space is:

[(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6),(1, 7),(1, 8)\\(2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6),(2, 7),(2, 8)\\(3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6),(3, 7),(3, 8)\\(4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6),(4, 7),(4, 8)\\(5, 1), (5, 2), (5, 3), (5, 4), (5, 5),(5, 6),(5, 7),(5, 8)\\(6, 1), (6, 2), (6, 3), (6, 4)(6, 5),(6, 6),(6, 7),(6, 8)\\(7, 1), (7, 2), (7, 3), (7, 4)(7, 5),(7, 6),(7, 7),(7, 8)\\(8, 1), (8, 2), (8, 3), (8, 4)(8, 5),(8, 6),(8, 7),(8, 8)]

The sample space of the product xy of each outcome forms the required possibility diagram.

This is given as:

1, 2, 3, 4, 5, 6,7,8\\2, 4, 6, 8, 10, 12,14,16\\3,6,9,12,15,18,21,24\\4,8,12,16,20,24,28,32\\5,10,15,20,25,30,35,40\\6,12,18,24,30,36,42,48\\7,14,21,28,35,42,49,56\\8,16,24,32,40,48,56,64

8 0
3 years ago
Hanson is at a ball game with his family. he goes to the concession stand to buy soft pretzels and water bottles for everyone. a
guajiro [1.7K]

The system of equation that can be used to represent the situation is as follows:

  • x + y = 16
  • 2x + 3.5y = 47

The number of water bottle bought = 6

The number of pretzel bought = 10

Let

x = number of water bottle bought

y = number of pretzel bought

Hanson buys 16 items. Therefore,

  • x + y = 16

Hanson spends a total of $47. Therefore,

  • 2x + 3.5y = 47

<h3>Combined System of equation:</h3>
  • x + y = 16
  • 2x + 3.5y = 47

Therefore, let multiply equation(i) by 2

2x + 2y = 32

2x + 3.5y = 47

1.5y = 15

y = 15 / 1.5

y = 10

x + 10 = 16

x = 6

learn more on system of equation: brainly.com/question/20313322?referrer=searchResults

7 0
2 years ago
Independent Practice
tangare [24]

Answer:

Option D

Step-by-step explanation:

There are no real solution for the given equation

Answered by GAUTHMATH

8 0
2 years ago
Is my answer correct? If its not, would you mine telling me what is correct?
Luden [163]

Answer:

Sorry but you have the y and x mixed up

Step-by-step explanation:

You have them mixed up

6 0
2 years ago
Read 2 more answers
The summary statistics for all students that took the SAT at Jones High School are shown. Four sample groups of 10 students are
8090 [49]

Answer:

D)

Step-by-step explanation:

i got it corect on the test

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is 4 divided by 2,658
    15·2 answers
  • When e = 4, f = 2, and g = 8. If e varies jointly with f and g, what is the constant of variation?
    13·2 answers
  • Can someone help me answer and explain how to solve this?
    13·2 answers
  • The tempature drops 15 degrees below zero. Write an absolute value to represent the drop in temperature
    15·1 answer
  • The equation y2/100+x2/4 =1 represents an ellipse. Which points are the vertices of the ellipse? (−10, 0) and (10, 0) (−2, 0) an
    10·2 answers
  • How can i rewrite the function by completing the square. h(x)= 4 x^{2} -36 x +81
    8·2 answers
  • 99 % of the trees in our neighborhood are eucalyptus trees. The town planning commission wants to get rid of some of these trees
    15·1 answer
  • Mark was watching a movie that was 124 minutes long. He fell asleep 75% of the way through. How many minutes of the movie did Ma
    9·1 answer
  • IXL- Look at the picture to answer correctly
    10·2 answers
  • Please help thank you
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!