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Math Question

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  • R Richard Parsons

    Ok guys and girls here is a fun question that maybe some of yall math folks will be able to solve. Note that I am not in High School and this is NOT for homework :) My wife is doing the budget and we can't figure this out... x + (10% of x) = y We know how much (y) is, but is there a way to get the value of (x) without knowing what (10% of x) is? Thanks for the help, -Richard

    J Offline
    J Offline
    Joshua Quick
    wrote on last edited by
    #3

    Let's do this first... (10% of x) = 0.1 * x = 0.1x So... x + 0.1x = y x(1 + 0.1) = y x(1.1) = y x = y/1.1 And how is this soapbox material? :)

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    • L Lost User

      x + (10% of x) = y x + 0.1x = y 1.1x = y x = (y/1.1) :-D - F

      J Offline
      J Offline
      Jorgen Sigvardsson
      wrote on last edited by
      #4

      Damn it, you beat me to it! :sigh:

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      • L Lost User

        x + (10% of x) = y x + 0.1x = y 1.1x = y x = (y/1.1) :-D - F

        J Offline
        J Offline
        Joshua Quick
        wrote on last edited by
        #5

        Ahhh... you beat me to it by 1 minute. :)

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        • J Joshua Quick

          Let's do this first... (10% of x) = 0.1 * x = 0.1x So... x + 0.1x = y x(1 + 0.1) = y x(1.1) = y x = y/1.1 And how is this soapbox material? :)

          J Offline
          J Offline
          Jerry Hammond
          wrote on last edited by
          #6

          Joshua Quick wrote:

          And how is this soapbox material?

          M-A-T-H is 4 letter word? My Programming Library C#, C# Run

          J J H 3 Replies Last reply
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          • J Jerry Hammond

            Joshua Quick wrote:

            And how is this soapbox material?

            M-A-T-H is 4 letter word? My Programming Library C#, C# Run

            J Offline
            J Offline
            Joshua Quick
            wrote on last edited by
            #7

            Toasty0 wrote:

            M-A-T-H is 4 letter word?

            It must be. Haven't you ever included "math.h" before? :-D What about System.Math? ;P

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            • J Jorgen Sigvardsson

              Damn it, you beat me to it! :sigh:

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              L Offline
              Lost User
              wrote on last edited by
              #8

              :beer: :) :beer:

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              • L Lost User

                x + (10% of x) = y x + 0.1x = y 1.1x = y x = (y/1.1) :-D - F

                R Offline
                R Offline
                Richard Parsons
                wrote on last edited by
                #9

                Thanks for the quick help... -Richard

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                • J Joshua Quick

                  Let's do this first... (10% of x) = 0.1 * x = 0.1x So... x + 0.1x = y x(1 + 0.1) = y x(1.1) = y x = y/1.1 And how is this soapbox material? :)

                  R Offline
                  R Offline
                  Richard Parsons
                  wrote on last edited by
                  #10

                  Thanks for the help. I posted here because I didn't want anyone to assume this was a programming question and go on and on and on about how people aren't suppose to post programming questions in the lounge... :) Long explination for a short answer. -Richard

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                  • L Lost User

                    x + (10% of x) = y x + 0.1x = y 1.1x = y x = (y/1.1) :-D - F

                    R Offline
                    R Offline
                    Richard Parsons
                    wrote on last edited by
                    #11

                    Ok my wife said I goofed. It was supposed to be x - (10% of x) = y Can we give it another shot please :) -Richard

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                    • R Richard Parsons

                      Ok my wife said I goofed. It was supposed to be x - (10% of x) = y Can we give it another shot please :) -Richard

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                      Alvaro Mendez
                      wrote on last edited by
                      #12

                      x = y/.9


                      ... now you see that evil will always triumph, because good is dumb. - Dark Helmet

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                      • J Jerry Hammond

                        Joshua Quick wrote:

                        And how is this soapbox material?

                        M-A-T-H is 4 letter word? My Programming Library C#, C# Run

                        J Offline
                        J Offline
                        Jeremy Falcon
                        wrote on last edited by
                        #13

                        Toasty0 wrote:

                        M-A-T-H is 4 letter word?

                        :laugh::laugh::laugh::laugh: Jeremy Falcon

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                        • J Jerry Hammond

                          Joshua Quick wrote:

                          And how is this soapbox material?

                          M-A-T-H is 4 letter word? My Programming Library C#, C# Run

                          H Offline
                          H Offline
                          hairy_hats
                          wrote on last edited by
                          #14

                          Only in the US. In the UK it's a five-letter word...

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