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The number of red marbles varies inversely as the square of the number of blue marbles when there were 4 reds there were 20 blues How many reds would there be if there were only 4 blues?
Wiki User
∙ 14y ago
Indirect variation: the numbers of red marbles = k/the square of blue marbles, where k is the coefficient of the variation.
4 = k/202
4 = k/400
1600 = k
Let the number of red marbles be x.
x = k/42
x = 1600/16
x = 100
Thus, if there were 4 blue marbles, would be 100 red marbles.
Wiki User
∙ 14y ago
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