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How many solutions will the equations (8x+3y=19) and (16x+6y=45) have?

Answer and explanation

Correct answer: No solution

Compare the ratios of the corresponding coefficients: \(8/16=3/6=1/2\), whereas the ratio of the constant terms is \(19/45\), which is not \(1/2\). Thus, the two lines are parallel and distinct, so they have no common point and the pair has no solution. Infinitely many solutions would require all three ratios to be equal. Exam tip: if \(a_1/a_2=b_1/b_2\ne c_1/c_2\), the pair has no solution.

Related tags

Linear EquationsConditions For SolvabilityParallel LinesNo SolutionClass 10Pair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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