Mathematics: The variables xx and yy vary directly. use the values to find the constant of proportionality, kk. then write an equation that relates xx and yy. write any fractions in simplest form. y=45; x=40

The variables xx and yy vary directly. use the

Ответ:

villafana36

01.01.2022

Direct variation means that changes in x will result to changes in y. If x increase, y also increases and vice versa.

y = kx
k = y / x

y = 45 ; x = 40

k = 45/40
k = 1.125

y = 1.125x

y will increase by 1.125 interval of x.

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Ответ:

rsmith4531

21.10.2022

Mathematics

$\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta r^2}{2}\qquad 
\begin{cases}
\theta=\textit{angle in radians}\\
r=radius\\
----------\\
\theta=\frac{\pi }{10}\\
r=20
\end{cases}\implies A=\cfrac{\frac{\pi }{10}\cdot 20^2}{2}$

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The variables xx and yy vary directly. use the values to find the constant of proportionality, kk. then write an equation that relates xx and yy. write any fractions in simplest form. y=45; x=40

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