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3 years ago

P varies inversely with x. If P = 12 when x = 4, find the value of P when x = −48.

Mathematics

1 answer:

Alla [95]3 years ago

6 0

Answer:

P = - 1

Step-by-step explanation:

Given P varies inversely with x the the equation relating them is

P = $\frac{k}{x}$ ← k is the constant of variation

To find k use the condition P = 12 when x = 4

12 = $\frac{k}{4}$ ( multiply both sides by 4 )

48 = k

P = $\frac{48}{x}$ ← equation of variation

When x = - 48, then

P = $\frac{48}{-48}$ = - 1

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4 years ago

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Set up the equation!

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Let's try subtracting 14 from both sides! We must do the opposite operation to cancel it out.

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45 = 45

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3 years ago

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kakasveta [241]

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