math

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1. If 2x/5y=6,what is the value of y, in terms of x ?


2. 11/4-a=3 , What is the value of a in the equation ?

  • math -

    1. What you probably meant was

    2x/(5y) = 6
    then 2x = 30y
    y = 2x/30 = x/15

    2. Again, without brackets, we could assume you meant
    11/(4-a) = 3
    but I will take you at face value and do it according to the order of operation.

    11/4 - a = 3
    11/4 - 3 = a
    a = 11/4 - 12/4
    a = -1/4

    using 11/(4-a) = 3
    11 = 12 - 3a
    3a = 1
    a = 1/3

    Can you see how critical brackets are when typing on here?

  • math -

    thank you

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