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Mrs.Bennett has graded 20% of her 150 students papers. How many papers does she still need to finish?

Sagot :

prestonp357
If she has finished 20%, she still has 80% to do. So just calculate .8 times 150.
baonguyenq1999
80% more
80/100 simplify = 4/5
4/5 of 150 = 120
She has to grade 120 more
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