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Subjects
Class 10MathematicsPair of Linear Equations in Two VariablesAlgebraic methods: Substitution method and Elimination method.HardLevel 55

On solving (0.4x+0.3y=3.1) and (0.2x-0.5y=-1.1), what is the value of (y)?

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Answer and explanation

Correct answer: (y=\frac{53}{13})

Multiply both equations by (10) to remove decimals. Then elimination gives (y=\frac{53}{13}).

Tags

linear equationsdecimal equationseliminationhardclass 10

Frequently asked questions

What is the correct answer to this question?

(y=\frac{53}{13})

Why is this the correct answer?

Multiply both equations by (10) to remove decimals. Then elimination gives (y=\frac{53}{13}).

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Pair of Linear Equations in Two Variables. Topic: Algebraic methods: Substitution method and Elimination method..

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