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Suppose y varies directly with x. If y is 8 when x is 12, find y when x is 18.​

Sagot :

[tex]\large\textsf{\textbf{Answer\::}}[/tex]

Please consult the "calculations" section of this ans .

[tex]\large\textsf{\textbf{Calculations\::}}[/tex]

If y varies directly with x , the equation looks like this :

y=kx , where k is the constant of proportionality

Plug in the values :

8=k/12

Multiply times 12 on both sides :

96=k

So the constant of proportionality is 96 .

Now solve for y when x is 18 as follows :

y=96/18

y≈5.33

[tex]\footnotesize\texttt{hope\:helpful~}[/tex]