Substitute F = 95 into 95 = (9/5)C + 32. Subtracting 32 gives 63 = (9/5)C. Multiplying by 5/9 yields C = 63 × (5/9) = 35. The temperature is 35°C. Ganita Manjari Class 9 Maths part 2 Chapter 13 Solutions
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Substitute x = 5 minutes into the equation y = 3x, which models the water level. This gives y = 3 × 5 = 15. Therefore, the water level reaches a height of 15 cm. NCERT Solution for Class 9 Ganita ...
Let the stool height be h and the cat height be c. The diagrams give h + c = 85 and h − c = 25. Adding both equations gives 2h = 110, which results in a stool height of ...
The ratio of their diameters and radii is 1 : 4. Since the surface area of a sphere is proportional to the square of its radius, the ratio of their surface areas is 1² : 4² = 1 : 16. Cbse ...
It has a unique solution because a₁/a₂ = 2/4 = 1/2 ≠ b₁/b₂ = 1/(-2) = -1/2. Graphing the lines y = 6 – 2x and y = 2x – 2 shows they intersect at (2, 2). Class 9 Maths (Ganita ...