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Anvisha [2.4K]
3 years ago
14

Please smart people help me​

Mathematics
1 answer:
Gekata [30.6K]3 years ago
4 0
im not smart but i think the answer is x-6x (,-9)
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The variable z is directly proportional to x, and inversely proportional to y. When x is 20 and y is 6, z has the value 66.66666
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Answer:

41.667 to the nearest thousandth.

Step-by-step explanation:

z = kx/y where k is the constant of proportionality.

Inserting the given values:

66.666666666667 = k*20/6

20k = 6*66.666666666667

k = 6*66.666666666667 / 20

=  20

So the equation of variation is z = 20x /y

When x = 25 and y = 12:

z = 20*25/12

= 41.666666666667.

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3 years ago
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Step-by-step explanation:

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3 years ago
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