Jhomny reality series project
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Jhomny reality series project

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Math Studies Sequ

Math Studies Sequ

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    Jhomny reality series project Jhomny reality series project Presentation Transcript

    • Jhomny yang yupi
      • If a crowd of people decided to make a human pyramid, with one person on the top row, two on the second, three on the third, etc, and there are 149 rows, how many people participated?
    •  
      • 1 un = u1 + (n-1) d
      • un = 1 + (149 -1 ) 1
      • un = 1 + (148) (1)
      • un = 149
      • 2 Sn= n/2( 2u1 + ( n – 1) d)
      • Sn= 149 / 2 ( 2 ( 1 )+ (149-1 ) 1)=
      • Sn = 71 ( 2 + (148) =
      • Sn= 20164
      • Suppose that you invest $ 1500 in the bank for 4 years, but this time i have to pay a compound interest rate of 12%. The interest is added to the investment each year and now i have to paid interest .
      • How is gonna be my money in 4 years?
    •  
      • 1500 $ inicial
      • U1 = 1500x (.12) amount after 1 year (180$)
      • U2= 1500x(.12)2 after 2 years (360$)
      • U3 =1500x (.12)3 after 3 years (540$)
      • U4 = 1500x (.12)4 after 4 years (720$)
      • Un+ 1 = Un x (.12)n = amount after n years
      • d= 180
      • Yahoo anwers and the text book pag 443.
      • Google