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If f = 36 when a = 9, find f when a = 8
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If f = 36 when a = 9, find f when a = 8

User ZitZit
by
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1 Answer

5 votes

Answer:

2=A

Explanation:

We know that F is directly proportional to A then the equation relating them is

F = kA ← k is the constant of proportion

To find k use the condition F = 36 when A = 9, then

36 = 9k ( divide both sides by 9 )

4 = k

F = 4A ← equation of proportion

When F = 8, then

8 = 8A ( divide both sides by 4 )

2 = A

User Alexykot
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