Answer:it’s A
Step-by-step explanation: it’s A because of the range
Solution: We are given:
Total students = 10 + 30 + 10 =50
Number of students who received A grade = 3 + 10 + 5 = 18
Number of senior student's who received A grade is = 10
Let A be the event that the student is senior and B be the event that he or she earned an A. Then,


Now the probability a student chosen at random from this class and is found to have earned an A, the probability that he or she is a senior is:



That is 5/6 - 5/6 * 1/10 = 5/6 - 5/60 = 50/60 - 5/60 = 45/60 = 3/4 hour answer
Thanksgiving
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It's too short.<span> Write at least 20 characters to explain it well.</span>
Answer:
15/x=1/3
Step-by-step explanation:
The quotient of 15 and a number=15/x=1/3
15/x=1/3