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Mrs Bennett has graded 20% of her 150 student's papers.How many papers does she have left to grade?
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5 votes
Mrs Bennett has graded 20% of her 150 student's papers.How many papers does she have left to grade?

User Proninyaroslav
by
8.1k points

2 Answers

5 votes
R= left papers. r=150-20%×150=150-0.2×150=0.8×150=120 There are 120 papers left.
User Bitmagier
by
7.1k points
2 votes
20% of 150 are done
0.2 * 150 = 30
150 - 30 are remaining
120 are remaining
User Casilda
by
8.4k points
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Mrs.Bennett has graded 20% of her 150 students papers. How many papers does she still need to finish?
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