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3 years ago

Y is inversely proportional to X. When y 20, x = 2 Work out y when x = 5

Mathematics

1 answer:

Oliga [24]3 years ago

6 0

Answer:

When x = 5, y = 8.

Step-by-step explanation:

y is inversely proportional to X.

This means that we solve this using the rule of three for inversely proportional variables, that is, we apply line multiplication instead of cross multiplication.

y = 20, x = 2

Work out y when x = 5

20 - 2

x - 5

Applying line multiplication

$5y = 40$

$y = \frac{40}{5}$

$y = 8$

When x = 5, y = 8.

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4 years ago

Read 2 more answers

Step by step Instructions

lord [1]

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4 years ago

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3 years ago

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irakobra [83]

Answer:

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Multiply both side of equation by 3.

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3 years ago