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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

    L Offline
    L Offline
    Lost User
    wrote on last edited by
    #2

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

    J J R 4 Replies Last reply
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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

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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:

                L Offline
                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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