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nikdorinn [45]
3 years ago
7

Y

Mathematics
1 answer:
Marizza181 [45]3 years ago
6 0

Answer:

x = 81

Step-by-step explanation:

y = k√x

56 = k√49

56 = k(7)

Divide both sides by 7

8 = k

k = 8

------------------------

When y = 72

72 = 8√x

Divide both sides by 8

9 = √x

Square both sides

81 = x

x = 81

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Answer:

You must divide 54 by 4

Step-by-step explanation:

we have

\frac{2}{3}=\frac{x}{6}=\frac{9}{y}

Step 1

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\frac{2}{3}=\frac{x}{6}

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Step 2

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\frac{x}{6}=\frac{9}{y}

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Answer:

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Step-by-step explanation:

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