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For prices of two tickets, the equations (7x+5y=260) and (14x+10y=535) are formed. What type of system is this?

Answer and explanation

Correct answer: Inconsistent

Here, \(\frac{a_1}{a_2}=\frac{7}{14}=\frac{1}{2}\) and \(\frac{b_1}{b_2}=\frac{5}{10}=\frac{1}{2}\), but \(\frac{c_1}{c_2}=\frac{260}{535}=\frac{52}{107}\). Thus, \(\frac{a_1}{a_2}=\frac{b_1}{b_2}\ne\frac{c_1}{c_2}\), which is the condition for an inconsistent system. The two lines have the same slope but different intercepts, so they have no common solution. Exam tip: if all three ratios are equal, the system is dependent; here, the constant-term ratio is different.

Related tags

Pair Of Linear EquationsConditions For SolvabilityInconsistent SystemParallel LinesClass 10 MathematicsPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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