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4. Express the following statements as an equation where k is the constant of
variation
1. The circumference of a cicle (c) varies directly as its diameter(d).
2. The time (t) required to empty a tank varies inversely as the rate (r) of
pumping
ned
3. The Area (A) of a square varies directly as the square of its side (s).​

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Express the following statements as an equation where k is the constant of variation

k = constant of variation

1. The circumference of a circle (c) varies directly as its diameter(d).

c = kd

2. The time (t) required to empty a tank varies inversely as the rate (r) of pumping ned

t = k/r

3. The Area (A) of a square varies directly as the square of its side (s).​

A = ks²

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