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1 January, 10:47

Garien buys 5 neon tetras and 4 cardinal tetras for $15.50. Marcus buys 6 neon tetras and 10 cardinal tetras for $26.40. Write a system of equations that can be used to find n, the cost of 1 neon tetra, and c, the cost of 1 cardinal tetra.

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  1. 1 January, 14:14
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    5n + 4c = 15.50

    6n + 10c = 26.40

    Solve the system and get c = 1.50 ∧ n = 1.90
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