• Sigilos@ttrpg.network
      6·
      1 month ago

      Solving percents. I use this to predict gross and net of my paychecks when I do my budget.

      Net               X
      ------    =    ------
      Gross            100
      
      
      (GrossX) = (Net × 100)
      
      GrossX ÷ (Net × 100) = X
      
      Example;
      
      200             X
      ------    =   -------
      250            100
      
      Step A
      200 × 100 = 20000
      
      Now 250X = 20000
      
      Step B
      20000÷250=80
      
      Therefore X=80
      Also expressed as 80% of 250 = 200.
      

      It’s also kinda handy when figuring out sales and stuff at the store, sometimes.

    • BlackLaZoR@fedia.io
      71·
      1 month ago

      I guess the 21 being equivalent to 100 years is just an assumption

      • glitchdx@lemmy.worldEnglish
        93·
        1 month ago

        it’s a generally accepted assumption in many post-Tolkien fantasy works.

          • Zwiebel@feddit.orgEnglish
            2·
            1 month ago

            In the USA probably because it’s their drinking age

              • glitchdx@lemmy.worldEnglish
                11·
                1 month ago

                before the Internet killed my attention span, I used to read a lot of science fiction and fantasy novels by a variety of authors. Since then, I’ve watched a lot of anime and read a lot of amateur writing. I don’t have specific sources to cite, but the trope is common enough and recurring enough that I stand by my claim of “generally accepted”.

      • Tall_Chilchuck@lemmy.world
        61·
        1 month ago

        Which kinda makes the math meaningless cause 73 < 100 requires no calculation.

        • SchwertImStein@lemmy.dbzer0.comEnglish
          5·
          1 month ago

          only if you assume the drinking age is 21 or the equivalent. An assumption that is true for a small percentage of population of the world for a small fraction of human history

          • Tall_Chilchuck@lemmy.world
            1·
            1 month ago

            only if you assume the drinking age is 21 or the equivalent.

            Which is exactly what the character is doing

            • emeralddawn45@lemmy.dbzer0.com
              21·
              1 month ago

              No the character just confirms that an equivalent age of 15 is too young. 21 is just the baseline age they use to do the calculation, because it lines up with 100 years in elf years. But the bartender wouldnt have to do the second part of the calculation at all if the drinking age is 21. It could easily be 16 or 17 and the elf would still be too young.