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
pochemuha
1 year ago
9

Comparing Relationships with Tables1. Decide whether each table could represent a proportional relationship.If the relationship

could be proportional, what would the constant ofproportionality be?a. How loud a sound is depending on how farDistance toaway you are.Listener (ft)Sound Level(dB)85791020407367Costb. The cost of fountain drinks at Hot Dog Hut.Volume(fluid ounces)($)$1.4920$1.59$1.8930

Mathematics
1 answer:
yan [13]1 year ago
6 0

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y=kx

where

k is the constant of proportionality

Verify each table

table a

Let

x ----> distance

y ----> sound level

For each ordered pair calculate the value of k

k=y/x

so

(5,85) -----> k=85/5=17

(10,79) ----> k=79/10=7.9

the values of k are differents

that means

the table nor represent a proportional relationship

table b

let

x ----> volume

y ----> cost

k=y/x

(16,1.49) ----> k=1.49/16=0.093125

(20,1.59) ----> k=1.59/20=0.0795

the values of k are differents

that means

the table nor represent a proportional relationship

You might be interested in
To convert temperatures from degrees Celsius to degrees Fahrenheit, you can use the function F(x)=95x+32 where x is the temperat
iogann1982 [59]

9514 1404 393

Answer:

  F(x) = (9/5)x -459.67

Step-by-step explanation:

F(C(x)) = 9/5(x -273.15) +32

F(C(x)) = (9/5)x -459.67 . . . . . simplify

5 0
2 years ago
Joey puts 25% of his allowance into savings each week. If last week he put 10$ in savings, what was his allowance last week?​
GrogVix [38]

Answer:

$40

Step-by-step explanation:

25% is 1/4.

If 10 is 1/4 of the full amount, then you take 10 and multiply by 4 to get the full amount.

10 times 4 equals 40.

7 0
3 years ago
The figure consists of a quarter circle and a parallelogram. What is the area of the composite figure? Use 3.14 for pi. Round to
Andru [333]
The area of a full circle is given by
  A = π*r^2
so the area of a 1/4 circle will be 1/4 of that:
  A = (π/4)*r^2

The area of a parallelogram is the product of base length and height:
  A = bh

Your composite figure will have an area that is the sum of the areas of the parts.
  A = (quarter circle area) + (parallelogram area)
  A ≈ (3.14/4)*(14 in)^2 +(14 in)*(5 in)
  A ≈ 223.86 in^2 ≈ 224 in^2

The most appropriate selection is the last one,
  224 in^2
7 0
3 years ago
Read 2 more answers
Describe in words the similarities and differences in multiplying and dividing complex numbers.
iragen [17]

Answer:

t does not matter if the two numbers are the same for multiplication or division. 4. ( ÷ ) To divide two fractions, take the second fraction, and flip it so that the top number is now on the bottom and vice versa, then multiply the two fractions together like you would for number 3.

Step-by-step explanation:

7 0
3 years ago
Factor each polynomial. 12x² + 4x
Nadya [2.5K]

Answer:

148x

Step-by-step explanation:

12x^2 + 4x

144x + 4x

148x

I think this is correct? But hopefully this helped :)

6 0
3 years ago
Other questions:
  • A solid has faces that consist of two squares and four congruent rectangles. What type of solid is it?
    5·2 answers
  • Evaluate the function rule to find the range of each function for the domain.
    5·1 answer
  • Find the quotient and remainderbfor 52 ÷8
    7·2 answers
  • Can u guys PLEASE answer question 26 and 27. THIS IS URGENT
    6·1 answer
  • write an equation in slope intercept form of a line that passes through the point (14, 8) and is (a) parallel (v) perpendicular
    9·1 answer
  • in a survey of students 60% were in high school in 40% were in middle school of the high school students 30% had visited a forei
    12·1 answer
  • Zach Goes on holiday
    7·1 answer
  • A factory uses a special kind of lubricant to maintain its two milling machines. Weekly lubricant usage for each machine is an i
    5·1 answer
  • In 1969 the antique automobile club of America had 20,000 members. it grew an average of 6.4% per year. how many years did it ta
    10·1 answer
  • Help! Scroll to see image!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!