Home
Class 8
MATHS
If x\ a n d\ y vary directly, find the m...

If `x\ a n d\ y` vary directly, find the missing entires in the following tables (i) x 2.5 ... ... 21 y 5 8 24 ... (ii) x ... 9 15 ... y 3 4.5 7.5 13.25

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • DATA HANDLING-IV (PROBABILITY)

    RD SHARMA ENGLISH|Exercise All Questions|39 Videos
  • DIVISION OF ALGEBRAIC EXPRESSIONS

    RD SHARMA ENGLISH|Exercise All Questions|61 Videos

Similar Questions

Explore conceptually related problems

If x and y vary directly find the missing entries:

If 3x+5y=11\ a n d\ x y=2, find the value of 9x^2+25 y^2

If x :\ y=3:5 , find the ratio 3x+4y :8x+5y .

If 9x^2+25 y^2=181\ \ a n d\ x y\ =\ -6, find the value of 3x+5y

If 9x^2+25 y^2=181 and x y=-6, find the value of 3x+5y

It x\ a n d\ y vary inversely, fill in the following blanks: (i) x ,2, 16, ..., 8 ,... y ,... ,6 ,4 ,... ,0.25 (ii) x ,16, 32, 8, 128 y, 4 ,... ,... ,0.25 (iii) x,9, ..., 81, 243 y,27, 9, ..., 1

Find the area bounded by the lines y=4x+5,y=5-xa n d4y=x+5.

If 5x + 6y : 8x + 5y = 8 : 9 , find : x : y .

Find the values of x and y from each of the following (i) (x+y,x-2y)=(7,1) (ii) (2x,x+3y)=(4,5)

Find the slope and the y-intercept of the line: (i) 2x-3y+5=0 (ii) 2y+5x=7 (iii) 2y-5=0

RD SHARMA ENGLISH-DIRECT AND INVERSE VARIATIONS-All Questions
  1. If we consider the pressure and volume of a gas at a specific tempe...

    Text Solution

    |

  2. In which of the following tables, a\ a n d\ b vary directly. Also, fin...

    Text Solution

    |

  3. If x\ a n d\ y vary directly, find the missing entires in the followin...

    Text Solution

    |

  4. A car travels 432 km on 48 litres of petrol. How far would it trave...

    Text Solution

    |

  5. If 40 metres of a cloth costs Rs 1940, how many metres can be broug...

    Text Solution

    |

  6. A private taxi charges a fare of Rs 260 for a journey of 200 km. Ho...

    Text Solution

    |

  7. Reema types 540 words during half an hour. How many words would she ty...

    Text Solution

    |

  8. The amount of extension in an elastic spring varies directly as the...

    Text Solution

    |

  9. Explain the concept of direct variation.

    Text Solution

    |

  10. Which of the following quantities vary directly with each other? (i...

    Text Solution

    |

  11. In which of the following tables a and b vary directly? (i) a: 7,...

    Text Solution

    |

  12. Fill in the blanks in each of the following so as to make the statem...

    Text Solution

    |

  13. Complete the following tables given that x varies directly as y . (i) ...

    Text Solution

    |

  14. Find the constant of variation from the table given below: x, 3, ...

    Text Solution

    |

  15. Rohit bought 12 registers for Rs 156, find the cost of 7 such regis...

    Text Solution

    |

  16. Anupama takes 125 minutes in walking a distance of 100 metre. What ...

    Text Solution

    |

  17. If the cost of 93 m of a certain kind of plastic sheet is Rs 1395, ...

    Text Solution

    |

  18. Suneeta types 1080 words in one hour. What is her GWAM (gross words...

    Text Solution

    |

  19. A car is travelling at the average speed of 50 km/hr. How much dist...

    Text Solution

    |

  20. 68 boxes of a certain commodity require a shelf-length of 13.6 m. H...

    Text Solution

    |