In your math journal, reflect on why cereal is currently packaged using a rectangular prism. What would be the advantages and di
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Answer:
t=-105
Step-by-step explanation:
What we need to do here is to isolate t.
Let's multiply both sides by -15.
7*-15= -105
t=-105
First case:
average of test score =70
number of students =p
total score of 'p' students = ( average of test score)*( number of students)
total score of 'p' students =70p
Second case:
average of test score =92
number of students =n
total score of 'n' students = ( average of test score)*( number of students)
total score of 'n' students =92n
total number of students = p+n
total average score =86
so, total score =86(p+n)
total score = total score of 'p' students +total score of 'n' students
now, we can simplify it
now, we can find p/n
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