3 years ago

Kayla can bake 15 muffins in 2.5 hours. At this rate, how many can she bake in 8 hours?

Mathematics

2 answers:

jenyasd209 [6]3 years ago

6 0

She can bake 48 in 8 hours

charle [14.2K]3 years ago

3 0

About 40-60 dozens of muffins

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sesenic [268]

Answer:

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Step-by-step explanation:

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$\:D.\text{ }f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge-4$

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We have the following equation:

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$\begin{gathered} x=\sqrt{f^{-1}(x)}-4 \\ \\ \sqrt{f^{-1}(x)}=x+4 \\ \\ f^{-1}(x)=(x+4)^2 \end{gathered}$

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Therefore, the domain is x ≥ -4.

So the correct answer is D.

$\:f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge -4$

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