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How many minutes will it take for the water to reach a height of 21 cm?
Using the equation of the line y = 3x, where y represents the height in centimetres and x represents the time in minutes, set y = 21. This yields the linear equation 3x = 21. Dividing both sides by 3 gives x = 21 / 3 = 7. Therefore, it will take exactly 7 minutes for the water to reach a height of 2Read more
Using the equation of the line y = 3x, where y represents the height in centimetres and x represents the time in minutes, set y = 21. This yields the linear equation 3x = 21. Dividing both sides by 3 gives x = 21 / 3 = 7. Therefore, it will take exactly 7 minutes for the water to reach a height of 21 cm.
For more NCERT Solutions of Class 9 Maths Ganita Manjari Part 2 Chapter 13 Two Variables, One Line Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-13/
See lessHow high is the water after 5 minutes?
The relationship between time x in minutes and water height y in centimetres is governed by the linear equation y = 3x. To find the water height after 5 minutes, substitute x = 5 directly into the equation: y = 3(5) = 15. Thus, after 5 minutes of filling, the water level in the tank reaches a heightRead more
The relationship between time x in minutes and water height y in centimetres is governed by the linear equation y = 3x. To find the water height after 5 minutes, substitute x = 5 directly into the equation: y = 3(5) = 15. Thus, after 5 minutes of filling, the water level in the tank reaches a height of exactly 15 cm.
For more NCERT Solutions of Class 9 Maths Ganita Manjari Part 2 Chapter 13 Two Variables, One Line Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-13/
See lessWhat is the y-intercept of the line? Explain its significance.
The y-intercept of the line y = 3x is 0. In slope-intercept form y = mx + d, the constant d represents the y-intercept where the line intersects the vertical axis. Since the line passes through (0, 0), its y-intercept is 0. Geometrically and practically, it indicates that at the initial state when xRead more
The y-intercept of the line y = 3x is 0. In slope-intercept form y = mx + d, the constant d represents the y-intercept where the line intersects the vertical axis. Since the line passes through (0, 0), its y-intercept is 0. Geometrically and practically, it indicates that at the initial state when x = 0, the quantity y begins at zero.
For more NCERT Solutions of Class 9 Maths Ganita Manjari Part 2 Chapter 13 Two Variables, One Line Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-13/
See lessIdentify the slope of the line from the graph and explain how you calculated it using the two points on the line.
The slope of a straight line is defined as the change in the vertical direction divided by the change in the horizontal direction, given by the formula (y₂ − y₁) / (x₂ − x₁). Taking the given points (0, 0) and (2, 6) on the graph, the slope equals (6 − 0) / (2 − 0) = 6 / 2 = 3. Hence, the slope of tRead more
The slope of a straight line is defined as the change in the vertical direction divided by the change in the horizontal direction, given by the formula (y₂ − y₁) / (x₂ − x₁). Taking the given points (0, 0) and (2, 6) on the graph, the slope equals (6 − 0) / (2 − 0) = 6 / 2 = 3. Hence, the slope of the line is 3.
For more NCERT Solutions of Class 9 Maths Ganita Manjari Part 2 Chapter 13 Two Variables, One Line Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-13/
See lessFind the height of the stool.
Let h denote the height of the stool and c denote the height of the cat in centimetres. From the first diagram, the cat sits atop the stool, giving h + c = 85. In the second diagram, the stool's height exceeds the ground-standing cat's head by 25 cm, giving h − c = 25. Adding these two linear equatiRead more
Let h denote the height of the stool and c denote the height of the cat in centimetres. From the first diagram, the cat sits atop the stool, giving h + c = 85. In the second diagram, the stool’s height exceeds the ground-standing cat’s head by 25 cm, giving h − c = 25. Adding these two linear equations cancels c, producing 2h = 110, which determines that the stool is 55 cm high.
For more NCERT Solutions of Class 9 Maths Ganita Manjari Part 2 Chapter 13 Two Variables, One Line Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-13/
See less