math

I need help with 4 mat problems. I do not know how to set up to solve.

x/8=-6

-4/9+(-5/7)

x-4/5=6/7

7/x=?/xsquared

  1. 👍 0
  2. 👎 0
  3. 👁 52
asked by will
  1. 1.Multiply both sides of the first equation by 8
    2. convert each fraction to have a (common) denomiator of 63. Then add the numerators
    3. Multiply both sides of the equation by 35 and yet 7(x-4) = 30
    Then solve that.
    4. I assume you mean (7/x) = y/x^2
    where y is a new unknown that you indicate by ?
    xy = 7x^2
    y = 7x

    1. 👍 0
    2. 👎 0
    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. algebra

    math question: you want to mat and frame a 5x 7 photograph. The perimeter of the outside of the mat is 60 inches. the mat is twice as wide at the top and the bottom as it is on the sides. Find the dimensions of the mat

    asked by carolina on August 24, 2012
  2. Math

    A photograph measuring 8 inches by 6 inches is surrounded by a mat. The mat has the same width on all sides of the photograph. The photograph and mat are put into a glass photo frame which just covers the outside of the mat. If

    asked by -Untamed- on December 7, 2011
  3. math

    A photograph measuring 8 inches by 6 inches is surrounded by a mat. The mat has the same width on all sides of the photograph. The photograph and mat are put into a glass photo frame which just covers the outside of the mat. If

    asked by Jenna on March 8, 2015
  4. Math

    A 4-inch-wide by 6-inch-long picture is placed on a solid mat that forms a frame around it. The mat is 8 inches long. The mat and the picture are similar rectangles. What is the area of the mat? I couldn't find the width of the

    asked by cass on February 25, 2016
  5. Astronomy

    What were the relative energy densities in the early Universe? (below, DE means dark energy) (a) They remain roughly equal: rad ∼ mat ∼ DE (b) DE > mat > rad (c) rad > mat > DE (d) mat > rad > DE

    asked by qwerty on October 1, 2013
  6. Math

    Vanessa presented a report on Japanese tea rooms to her class. The floors are usually covered with square and rectangular tatami mats. She drew one way to cover square floor with a square half tatami mat qnd four rectangular full

    asked by Bella S on September 11, 2011
  7. geometry

    A kindergarten school has square mats in two colors, red and blue. The ratio of the perimeter of the red mat to the perimeter of the blue mat is 1 : 2. The area of the red mat is blue mat is 9 square feet. What is the area of the

    asked by vanessa on November 9, 2011
  8. Geometry

    A school's wrestling mat is a square with 50 ft sides. A circle 28 ft in diameter is painted on the mat. No wrestling is allowed outside the circle. Find the area of the part of the mat that is NOT used for wrestling. Use

    asked by Andrea on April 27, 2015
  9. math

    The area of a round mat is 64 pie square inches. What is the diameter of the mat?

    asked by Anonymous on October 19, 2016
  10. Geometry

    A kindergarten school has square mats in two colors, red and blue. The ratio of the perimeter of the red mat to the perimeter of the blue mat is 2 : 1. The area of the blue mat is 36 square feet. What is the area of the red mat?

    asked by V'Andrew on April 2, 2012

More Similar Questions