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10th grade math

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solve each equation for y. do x and y vary directly? if so indentify the constant of variation.
1.4x=5y
2.2x+3y=6

  • 10th grade math -

    the area of a parallelogram is 85 square meters and its base is 17 meters long.
    what is the height of the parallelogram?

  • 10th grade math -

    Do not post a new question as a reply to another persons problem.
    use "Post a New Question" above.

    area of a parallelogram = base x height
    85 = 17(height)
    height = ...

  • 10th grade math -

    i need help with math

  • 10th grade math -

    4x - 5y = 0 (#1)
    4x + 6y = 12 (#2 x 2)

    -11y = -12 I subtracted them
    y = 12/11

    back in #1
    4x = 5(12)/11
    x = 15/11

  • 10th grade math -

    it is about inequalities. i have to solve them graphically and shade the solution set.then i have to identify teo points within the solution set and two points not within the solution set. they are y is less than 2x-3
    and y is greater than or equal to -3x. how do you solve for those equations ?

  • 10th grade math -

    express the following as positive exponets

  • 10th grade math -

    what is the solution set for x^2-25 is less than or equal to 0

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