Find all missing angles
1 answer:
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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
Given:
The discount is 25%.
The selling price of the shirt after the sale is $20.99.
To find:
The selling price of the shirt before the sl;e
Explanation:
Let the old price be x.
The equation can be framed as follows,
Final answer:
The selling price of the shirt before the sale is $27.99.