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3 years ago

Y is directly related to X, and Y is 81 when X is 27. The constant of variation is a0.

Mathematics

1 answer:

melomori [17]3 years ago

6 0

Answer:

Step-by-step explanation:

Since y is directly related to x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 81 when x = 27

k = $\frac{y}{x}$ = $\frac{81}{27}$ = 3

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The radii of two circles are in the ratio of 3 to 1. Find the area of the smaller circle if the area of the larger circle is 27

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ANSWER
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EXPLANATION

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