Respuesta :

mhanifa

Answer:

  • See below

Step-by-step explanation:

Part 1

  • P = $800
  • r = 2% (since P > $500)
  • I = $100
  • t = ?

Find t:

  • I = Prt
  • 100 = 800*0.02t
  • 0.16t = 1
  • t = 1/0.16
  • t = 6.25 years

Part 2

  • P = $100
  • r = 1.5% (since P < $500)
  • I = $50
  • t = ?

Find t:

  • I = Prt
  • 50 = 100*0.015t
  • 0.03t = 1
  • t = 1/0.03
  • t = 33.33 years

Part 3

  • P = $10000
  • r = 3% (since P > $5000)
  • I = $750
  • t = ?

Find t:

  • I = Prt
  • 750 = 10000*0.03t
  • 300t = 750
  • t = 750/300
  • t = 2.5 years

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