Respuesta :

Answer:   162.959

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Explanation:

  • "Decrease the number by 4 tenths" means we're subtracting off 0.4
  • "Increase the number by 8 thousandths" means we're adding 0.008
  • "Increase the number by 2 tens" is the same as adding on 2*10 = 20

The changes of this number are

  • -0.4
  • +0.008
  • +20

The overall net change is -0.4+0.008+20 = 19.608

We'll be adding this net change to the original number

143.351 + 19.608 = 162.959

This value is exact and hasn't been rounded.

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