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What kind of pair is (12x+4y=16) and (3x+y=5)?

Answer and explanation

Correct answer: Inconsistent

Compare the ratios of the corresponding coefficients and constants: \(\frac{12}{3}=\frac{4}{1}=4\), but \(\frac{16}{5}\neq 4\). Thus, \(\frac{a_1}{a_2}=\frac{b_1}{b_2}\neq\frac{c_1}{c_2}\), so the two lines are distinct and parallel and have no common solution. Therefore, the pair is inconsistent. Exam tip: equal ratios for the first two terms but an unequal ratio for the constant terms indicate an inconsistent pair.

Related tags

Linear EquationsSolvability ConditionsInconsistent PairParallel LinesConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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