Kaitlyn2123 Kaitlyn2123
  • 16-11-2016
  • Mathematics
contestada

Johnny has graded 20% of his 150 students papers how many papers does he still need to finish grading ?

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lc2002
lc2002 lc2002
  • 16-11-2016
The correct answer is 120 papers.
Answer Link
Аноним Аноним
  • 16-11-2016
First change 20% to a decimal 20% = .20
Then you multiply 150x.20=30 to find out how many papers he has graded so far. 
Then subtract 30 from 150 to find out how many papers he still needs to grade.
150 - 30 = 120
So he has 120 papers left to grade.
Answer Link

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