रेखा \(y=-\frac{9}{5}x+22\) में (y) को (54) घटाने के लिए (x) कितना बढ़ना चाहिए?

In the line \(y=-\frac{9}{5}x+22\), how much should (x) increase to decrease (y) by (54)?

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Correct Answer

C. (30)

Step 1

Concept

The decrease is \(\frac{9}{5}\Delta x\). From \(\frac{9}{5}\Delta x=54\), \(\Delta x=30\).

Step 2

Why this answer is correct

The correct answer is C. (30). The decrease is \(\frac{9}{5}\Delta x\). From \(\frac{9}{5}\Delta x=54\), \(\Delta x=30\).

Step 3

Exam Tip

कमी \(\frac{9}{5}\Delta x\) होगी। \(\frac{9}{5}\Delta x=54\) से \(\Delta x=30\) मिलता है।

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Mathematics Answer, Explanation and Revision Hints

रेखा \(y=-\frac{9}{5}x+22\) में (y) को (54) घटाने के लिए (x) कितना बढ़ना चाहिए? / In the line \(y=-\frac{9}{5}x+22\), how much should (x) increase to decrease (y) by (54)?

Correct Answer: C. (30). Explanation: कमी \(\frac{9}{5}\Delta x\) होगी। \(\frac{9}{5}\Delta x=54\) से \(\Delta x=30\) मिलता है। / The decrease is \(\frac{9}{5}\Delta x\). From \(\frac{9}{5}\Delta x=54\), \(\Delta x=30\).

Which concept should I revise for this Mathematics MCQ?

The decrease is \(\frac{9}{5}\Delta x\). From \(\frac{9}{5}\Delta x=54\), \(\Delta x=30\).

What exam hint can help solve this Mathematics question?

कमी \(\frac{9}{5}\Delta x\) होगी। \(\frac{9}{5}\Delta x=54\) से \(\Delta x=30\) मिलता है।