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Earn +20 ptsQ: The math teacher made a mistake when she calculated the student's grade average?
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Which literary technique is used in The math teacher made a mistake when she calculated Marcie's grade average?
Irony
A school has 825 students and 55 teachers. How many students are there per teacher?
There are: 825/55 = 15 students per teacher
How many combinations of 3 students can a teacher choose from 32 students?
The answer is 4,960.
How many combinations of 4 students can a teacher choose from 30 students?
The answer is 30C4 = 30*29*28*27/(4*3*2*1) = 27,405
A chemistry teacher has a 560-cm length of magnesium ribbon. For a class experiment each student requires an 8.5-cm length of the ribbon. How many students may receive the required length?
65 students
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