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March 29, 2017

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I can solve the proportions by any method. can anyone help me understand this.
#1
4/15 = x/5

#2
x/3 = x+10/6

  • math156-proportions - ,

    cross multiply.

    So for #1 It becomes
    (4)(5) = 15x in the next step.
    then continue to find X

  • math156-proportions - ,

    What do you mean by "understand"?
    I can solve the first one for you.
    4/15 = x/5
    Cross mutliply.
    5*4 = x*15
    20=15x
    x=20/15 = 4/3 = 1.333.

    The second one needs some work.Is that x/3 = x+(10/6) or is it
    x/3 = (x+10)/6

  • math156-proportions - ,

    it is:


    x/3 = x + 10/6

    it would read as x over 3 = x plus 10 over 6

  • math156-proportions - ,

    what i meant by not understanding is just that, i am lost with the numbers and letters together once i get someone to show me one i can do the rest. I can whip threw them if they are story problems but not just a line of letters and numbers.
    Thanks for your help.

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