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
kozerog [31]
8 months ago
5

Need some help with table 2.Fill up tables of proportional relationships with missing Values.

Mathematics
1 answer:
schepotkina [342]8 months ago
5 0

Proportional Relationships

If the variables x and y are in a proportional relationship, then:

y = kx

Where k is the constant of proportionality that can be found as follows:

k=\frac{y}{x}

If we are given a pair of values (x, y), we can find the value of k and use it to fill the rest of the table.

For example, Table 1 relates the cost y of x pounds of some items. We are given the pair (2, 2.50). We can calculate the value of k:

k=\frac{2.50}{2}=1.25

Now, for each value of x, multiply by this factor and get the value of y. For example, for x = 3:

y = 1.25 * 3 = 3.75

This value is also given and verifies the correct proportion obtained above.

For x = 4:

y = 1.25 * 4 = 5

For x = 7:

y = 1.25 * 7 = 8.75

For x = 10:

y = 1.25 * 10 = 12.50

Now for table 2, we are given the pair (3, 4.5) which gives us the value of k:

k=\frac{4.5}{3}=1.5

Apply this constant for the rest of the table.

For x = 4:

y = 1.5 * 4 = 6

For x = 5:

y = 1.5 * 5 = 7.50

For x = 8:

y = 1.5 * 8 = 12

The last column doesn't give us the value of x but the value of y, so we need to solve for x:

y=k\cdot x\text{  }=>\text{ }x=\frac{y}{k}

For y = 15:

x=\frac{15}{1.5}=10

You might be interested in
Remo needs to buy a countertop for a bathroom. He calculated the area as 10 square feet. The actual area is 9.5 square feet. Wha
Digiron [165]

Answer:

The answer is either 5.26 or 5 I think its 5.26

Step-by-step explanation: The reason why I think its the two answers I said is because 10 is 10 percent of 100 so 9.5 is 9.5 percent which makes me think that

4 0
3 years ago
Read 2 more answers
Using n for the variable, write an algebraic expression that represents a number that is divisible by the given number. (Hint: A
iris [78.8K]

Answer:

'5n' is the correct answer.

Step-by-step explanation:

Let 'n' be any integer i.e. a number from the set {....., -3,-2,-1,0,1,2,3, ..... }

so 'n' can be termed as the variable here because its value can change and can be any value from the above set.

A number 'q' that can be divided by a a given number 'p' can be written as:

n \times p

When divided by 'p' :

\dfrac{q}p = \dfrac{n \times p}{p}\\\dfrac{q}p = n

So, The number 'q' is completely divisible by 'p' leaving 'n' as the quotient.

Using this concept, let us solve the questions:

a) Using 'n' as the variable, a number that is divisible by 5 can be written as:

5n

Read more on Brainly.com - brainly.com/question/16919676#readmore

7 0
3 years ago
Why is it 1/6, plz explain
Mkey [24]
On that chart on the top right does it only include population?

7 0
2 years ago
Help me plz ASAP
Hatshy [7]
The equation has one solution
4 0
3 years ago
If y varies directly as x and y = 3 when x = - 9, then find x when y = 5.
Rus_ich [418]

Answer:

d. - 15

Step-by-step explanation:

The equation for direct variation is

y = kx

We know y =3 when x = -9

3 = k(-9)

Divide by -9

3/-9 = -9k/-9

-1/3 = k

The equation is then

y = -1/3 x

We know y = 5

5 = -1/3 x

Multiply each side by -3

-3*5 = -3*-1/3x

-15 = x

3 0
2 years ago
Other questions:
  • to rent a certain meeting room, a college charges a reservation fee of $47 and an additional fee of $9.60 per hour the chemistry
    6·1 answer
  • The set of integers in (6,10) can be written as?
    6·1 answer
  • Please help wit all questions! leave work below! if you do this , it will give you 40 points!!
    10·1 answer
  • Help me please ASAP!!!
    6·1 answer
  • 1/2 of Ila’s workspace is covered in paper. 1/3 of the paper is covered in yellow sticky notes. What fraction of Ila’s workspace
    15·1 answer
  • Please answer ASAP! An explanation is a MUST REQUIREMENT in order to receive points and the Brainliest answer. Thank you.
    9·2 answers
  • A beverage manufacturer performs a taste-test and discovers that people like their fizzy beverages best when the radius of the b
    15·2 answers
  • Dostaniecie 5 gwiazdek i serce a może nawet naj jak odpowiecie na następujące pytanie: wypisz pięć kolejnych różnic od 0
    10·1 answer
  • Your answer is incorrect.
    5·1 answer
  • Question Help
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!