What is the constant of proportionality in the equations

Ответ:

Uhmjujiooo4220

12.03.2022

Mathematics

The constant of proportionality of the equation is: C) $\frac{9}{2}$

Given:

$\frac{x}{y} =\frac{2}{9}$

Recall:

Constant of proportionality which is denoted by is usually expressed as:

$k = \frac{y}{x}$

To find the constant of proportionality of the equation, rewrite the equation such that $k = \frac{y}{x}$

$\frac{x}{y} =\frac{2}{9}\\$

Cross multiply:

$2\times y = 9\times x\\2y = 9x\\\frac{2y}{2}= \frac{9x}{2} \\y =\frac{9x}{2}\\\frac{y}{x} = \frac{9}{2}$

$k =\frac{9}{2}$

Therefore, the constant of proportionality is: C) $\frac{9}{2}$

Learn more about constant of proportionality here:

link

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Ответ:

triciazeeck62311

12.03.2022

Mathematics

x/y=2/9

y = 9/2 x

The constant of proportionality in the equation is 9/2

C)9/2

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Ответ:

usagimiller

30.03.2023

Mathematics

Step-by-step explanation:

600g of 20%

100 - 20 = 80

600 = 80%

/80%

7.5 = 1%

x100

750 = 100%

£750

Sorry I don’t know what else to write. Hopefully, this guarantees you a mark.

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What is the constant of proportionality in the equations x/y=2/9 a)2/9 b)2 c)9/2 d)9

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