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You'r mother taught you how to bake cupcakes a recipe for 16 cupcakes needs 2 cup of flour the number of cupcakes (n) you can varies direct ly with the amount of flour (a)


Sagot :

KANTOINEDOIXIN

DIRECT VARIATION

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Solve:

Let n be the number of cupcakes

Let a be the amount of flour

[tex] \implies \sf \large n = ka[/tex]

[tex]\large \tt \red{given} \begin{cases} \sf \: n = 16 \\ \sf \: a = 2 \end{cases} \\ \\

[/tex]

[tex] \implies \sf \large 16 = k(2)[/tex]

[tex] \implies \sf \large \frac{16}{2} = \frac{k( \cancel2)}{ \cancel2} \\ [/tex]

[tex] \implies \sf \large \therefore \: \orange{k = 8}[/tex]

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