Home
Class 7
MATHS
By what number should (-5)^(-1) be multi...

By what number should `(-5)^(-1)` be multiplied so that the product is `(8)^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
`frac(-5)(8)`
Promotional Banner

Topper's Solved these Questions

  • EXPONENTS

    RS AGGARWAL|Exercise EXERCISE 5B|4 Videos

  • EXPONENTS

    RS AGGARWAL|Exercise EXERCISE 5C|21 Videos

  • EXPONENTS

    RS AGGARWAL|Exercise TEST PAPER-5|14 Videos

  • DECIMALS

    RS AGGARWAL|Exercise TEST PAPER-3(D)|5 Videos

  • FRACTIONS

    RS AGGARWAL|Exercise TEST PAPER-2|26 Videos

Similar Questions

Explore conceptually related problems

By what number should (-5/2)^(-1) be multiplied so that the product is (25/4)^(-2)

By what number should (-6)^(-1) be multiplied so that the product becomes 9 ^(-1) ?

By what number should ((1)/(2)) ^(-1) be multiplied so that the product is ((-5)/(4)) ^(-1) ?

By what number should (-3) ^(-1) be multiplied so that the proudct becomes 6 ^(-1) ?

By what number should (5/3)^(-2) be multiplied so that the product may be (7/3)^(-1)?

By what number should (-8)^(-1) be multiplied so that the product may be equal to 10^(-1)?

By what number should 3^(-3) be multiplied to obtain 4?

By what number should (-8)^(-1) be multiplied to get 10^(-1) ?

RS AGGARWAL-EXPONENTS -EXERCISE 5A
  1. Write each of the following in power notation: ( i ) frac(5)(7)xxfra...

    Text Solution

    |

  2. Express each of the following in power notation: ( i ) frac(25)(36) ...

    Text Solution

    |

  3. Express each of the following as a rational number: ( i ) (frac(2)(3...

    Text Solution

    |

  4. Express each of the following as a rational number: ( i ) (4)^(-1) ...

    Text Solution

    |

  5. Find the reciprocal of each of the following: ( i ) (frac(5)(8))^(4)...

    Text Solution

    |

  6. Find the value of each of the following: ( i ) 8^(@) ( ii ) (-3)^(...

    Text Solution

    |

  7. Simplify each of the following and express each as a rational number: ...

    Text Solution

    |

  8. Simplify each of the following as a rational number: ( i ) (frac(4)(...

    Text Solution

    |

  9. Express each of the following as a rational number: ( i ) 5^(-3) ( ...

    Text Solution

    |

  10. Simplify: ( i ) [{(frac(-1)(4))^(2)}^(-2)]^(-1) ( ii ) {(frac(-2)...

    Text Solution

    |

  11. By what number should (-5)^(-1) be multiplied so that the product is (...

    Text Solution

    |

  12. By what number should 3^(-3) be multiplied to obtain 4?

    Text Solution

    |

  13. By What number should (-30)^(-1) be divided to get 6^(-1) ?

    Text Solution

    |

  14. Find x such that (frac(3)(5))^(3) xx (frac(3)(5))^(-6)=(frac(3)(5))^(2...

    Text Solution

    |

  15. (3^5xx10^5xx25)/(5^7xx6^5)

    Text Solution

    |

  16. Simplify: frac(16 xx 2^(n+1)-4 xx 2^(n))(16 xx 2^(n+2)-2 xx 2^(n+2)).

    Text Solution

    |

  17. Find the value of n when: ( i ) 5^(2n) xx 5^(3)=5^(9) ( ii ) 8 xx...

    Text Solution

    |

  18. If 2^(n-7) xx 5^(n-4)=1250, find the value of n.

    Text Solution

    |