oksenchuk2005p676ny oksenchuk2005p676ny
  • 15-12-2018
  • Mathematics
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In three rolls of 630 m of paper. In the first and second rolls - 345 m, and in the second and third rolls 450. How many meters of paper in the second roll.

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nsbtj
nsbtj nsbtj
  • 15-12-2018
a = 1st roll
b= 2nd rolls
c = 3rd rolls
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