5615no
contestada

Which table has a constant of proportionality between y and x of 1/6?

choose 1 answer.

A: x--15 19&1/2 36
y---5 6 & 1/2 12

B: x--12 13&1/2 24
y---2 3 &1/2 14

C: x--18 27 23
y--3 4&1/2 5&1/2

Plz help this is just way to confusing. :>

Respuesta :

Your Question is not well presented.

See Question Below

Which table has a constant of proportionality between y and x of 1/6?   (choose 1 answer.)

A:

x--> 15 ---19[tex]\frac{1}{2}[/tex] --- 36

y--> 5 ---- 6[tex]\frac{1}{2}[/tex] ---- 12

B:

x--> 12 ---13[tex]\frac{1}{2}[/tex] --- 24

y--> 2 ---- 3[tex]\frac{1}{2}[/tex] ---- 14

C:

x--> 18 --- 27 --- 33

y--> 3 ---- 4[tex]\frac{1}{2}[/tex] ---- 5[tex]\frac{1}{2}[/tex]

Answer:

Table C has 1/6 as the constant of proportionality between y and x

Step-by-step explanation:

Given

Table A, B, C

Required

To check which of the tables has a constant of proportionality of 1/6

The constant of proportionality is calculated by dividing individual values of y column with x column.

Mathematically, this is represented by

[tex]k = \frac{y}{x}[/tex]

Where k is the constant of proportionality

Recall Table A

x--> 15 ---19[tex]\frac{1}{2}[/tex] --- 36

y--> 5 ---- 6[tex]\frac{1}{2}[/tex] ---- 12

When x = 15, y = 5.

The constant of proportionality becomes

[tex]k = \frac{y}{x}[/tex]

[tex]k = \frac{5}{15}[/tex] --- Simplify fraction to lowest term by dividing by 5

[tex]k = \frac{1}{3}[/tex]

So, when x = 15, y = 5.

[tex]k = \frac{1}{3}[/tex]

[tex]\frac{1}{3}[/tex] is not equal to [tex]\frac{1}{6}[/tex]; So, we do not need to check further in table A.

Hence, table A does not have 1/6 as the constant of proportionality between y and x

We move to table B

Recall Table B

x--> 12 ---13[tex]\frac{1}{2}[/tex] --- 24

y--> 2 ---- 3[tex]\frac{1}{2}[/tex] ---- 14

When x = 12, y = 2.

The constant of proportionality becomes

[tex]k = \frac{y}{x}[/tex]

[tex]k = \frac{2}{12}[/tex] --- Simplify fraction to lowest term by dividing by 2

[tex]k = \frac{1}{6}[/tex]

We can't conclude yet, if the constant of proportionality between y and x in table B is [tex]\frac{1}{6}[/tex] until we check further

When [tex]x = 3\frac{1}{2} , y = 13\frac{1}{2}[/tex]

The constant of proportionality becomes

[tex]k = \frac{y}{x}[/tex]

[tex]k = \frac{3\frac{1}{2}}{13\frac{1}{2}}[/tex] --- Convert to decimal

[tex]k = \frac{3.5}{13.5}[/tex] Simplify fraction to lowest term by dividing by 0.5

[tex]k = \frac{3.5/0.5}{13.5/0.5}[/tex]

[tex]k = \frac{7}{27}[/tex] -- This cannot be simplified any further

[tex]\frac{7}{27}[/tex] is not equal to [tex]\frac{1}{6}[/tex]; So, we do not need to check further in table B.

Hence, table B does not have 1/6 as the constant of proportionality between y and x

We move to table C

Recall Table C

x--> 18 --- 27 --- 33

y--> 3 ---- 4[tex]\frac{1}{2}[/tex] ---- 5[tex]\frac{1}{2}[/tex]

When x = 18, y = 3

The constant of proportionality becomes

[tex]k = \frac{y}{x}[/tex]

[tex]k = \frac{3}{18}[/tex] --- Simplify fraction to lowest term by dividing by 3

[tex]k = \frac{1}{6}[/tex]

We can't conclude yet, if the constant of proportionality between y and x in table C is [tex]\frac{1}{6}[/tex] until we check further

When x = 27, [tex]y = 4\frac{1}{2}[/tex]

The constant of proportionality becomes

[tex]k = \frac{y}{x}[/tex]

[tex]k = \frac{4\frac{1}{2}}{27}[/tex] --- Convert to fraction to decimal

[tex]k = \frac{4.5}{27}[/tex] Simplify fraction to lowest term by dividing by 4.5

[tex]k = \frac{1}{6}[/tex]

We still can't conclude until we check further

When x = 33, [tex]y = 5\frac{1}{2}[/tex]

The constant of proportionality becomes

[tex]k = \frac{y}{x}[/tex]

[tex]k = \frac{5\frac{1}{2}}{33}[/tex] --- Convert to fraction to decimal

[tex]k = \frac{5.5}{33}[/tex] Simplify fraction to lowest term by dividing by 5.5

[tex]k = \frac{1}{6}[/tex]

Notice that; for every value of x and its corresponding value of y, the constant of proportionality, k maintains [tex]\frac{1}{6}[/tex] as its value

Hence, we can conclude that "Table C has 1/6 as the constant of proportionality between y and x"

Answer:

C is the right answer.

Step-by-step explanation:

Khan Academy

Otras preguntas

RELAXING NOICE
Relax