samuelobh
samuelobh samuelobh
  • 02-05-2020
  • Mathematics
contestada

Answer the question in the included image?

Answer the question in the included image class=

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lucasella
lucasella lucasella
  • 02-05-2020

2x+15 +2x+3x+20+9=100

7x+44=100

7x=100-44=56

=> x=56:7

x=8

=> 4x+15=32+15=47  stamps in the 20th century

Probability=47/100;   47%

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