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2 results found for "fraction-value" in Class 10.

Question Medium Mathematics Pair of Linear Equations in Two Variables Algebraic methods: Substitution method and Elimination method. Class 10 Level 57

समीकरणों (8x-5y=29) और (3x+5y=26) से (y) का मान क्या है?

What is the value of (y) from (8x-5y=29) and (3x+5y=26)?

Explanation opens after your attempt
Correct Answer

D. \(y=\frac{11}{5}\)

Step 1

Concept

Adding both equations gives (11x=55), so (x=5). From the second equation (15+5y=26), hence \(y=\frac{11}{5}\).

Step 2

Why this answer is correct

The correct answer is D. \(y=\frac{11}{5}\). Adding both equations gives (11x=55), so (x=5). From the second equation (15+5y=26), hence \(y=\frac{11}{5}\).

Step 3

Exam Tip

दोनों समीकरण जोड़ने पर (11x=55), इसलिए (x=5)। दूसरे समीकरण से (15+5y=26), अतः \(y=\frac{11}{5}\)।

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Question Easy Mathematics Polynomials Polynomials in one variable Class 10 Level 47

यदि (r(x)=4x-2), तो (r\left\(\frac{1}{2}\right\)) क्या है?

If (r(x)=4x-2), what is (r\left\(\frac{1}{2}\right\))?

Explanation opens after your attempt
Correct Answer

A. (1)

Step 1

Concept

(r\left\(\frac{1}{2}\right\)=4\left\(\frac{1}{2}\right\)2=1). Use brackets when substituting fractions.

Step 2

Why this answer is correct

The correct answer is A. (1). (r\left\(\frac{1}{2}\right\)=4\left\(\frac{1}{2}\right\)2=1). Use brackets when substituting fractions.

Step 3

Exam Tip

(r\left\(\frac{1}{2}\right\)=4\left\(\frac{1}{2}\right\)2=1) है। भिन्न रखते समय कोष्ठक का प्रयोग करें।

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