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Which statement is correct about 6x+4y=40 and 3x+2y=20?

Answer and explanation

Correct answer: There are infinitely many solutions

The governing idea is the condition for dependent linear equations. Multiplying 3x+2y=20 by 2 gives 6x+4y=40, exactly the first equation. Thus both equations represent the same line, and every point on that line satisfies both. Therefore infinitely many ordered pairs are solutions, so B is correct; the system is neither inconsistent nor uniquely determined.

Related tags

Linear EquationsDependent EquationsConditions For SolvabilityClass 10Pair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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