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Anestetic [448]
3 years ago
8

Please help me out!!!!!!!!

Mathematics
1 answer:
qaws [65]3 years ago
5 0

Answer:

x = - 6

Step-by-step explanation:

Given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = - 9 when x = 3, thus

k = \frac{y}{x} = \frac{-9}{3} = - 3

y = - 3x ← equation of variation

When y = 18, then

18 = - 3x ( divide both sides by - 3 )

x = - 6

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3. If 2p + q = 11 and p + 2q = 13, then<br> p+q=<br> (A) 6<br> (B) 8<br> (C) 9<br> (D) 12<br> (E) 18
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Read 2 more answers
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