Answer:
they cost 13.86666666666667
Step-by-step explanation:
Divided by its a key word for example: Sally has 100 cookies she shares them with 9 friends how many cookies does each person get? including sly there are 10 people. so, it would be 100÷10 which is 10
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Answer:
t*16+b*12=how much money per week
Step-by-step explanation:
hope this helps
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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

................Answer