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What type of pair is formed by 16x+24y=88 and 2x+3y=11?

Answer and explanation

Correct answer: Consistent and dependent

Use the consistency criterion for two linear equations. The second equation is 2x+3y=11. Multiplying every term by 8 gives 16x+24y=88, which is precisely the first equation. Thus the coefficient ratios and constant ratio are equal: 16/2=24/3=88/11=8. Geometrically, both equations represent the same straight line, so they have infinitely many common points. Algebraically, there is only one independent equation for the two variables, leaving one variable free; this is why the pair is dependent. Because at least one common solution exists—in fact infinitely many—the pair is consistent as well. Therefore option A is the only correct answer. Inconsistent would mean no common solution, and independent would mean two non-proportional lines meeting at one point. Neither description fits these proportional equations.

Related tags

Linear EquationsSolvabilityCoincident LinesInfinitely Many SolutionsClass 10Conditions For SolvabilityPair Of Linear Equations In Two VariablesMathematics

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