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Anastaziya [24]
3 years ago
12

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

Mathematics
2 answers:
marin [14]3 years ago
7 0
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.
LiRa [457]3 years ago
4 0
The correct answer is 120 papers.
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