Im not sure about the second one, but for the first one, Alex’s height is 167.64 cm. :)
Yea yea :8+10 and we paid for the roaches
Answer:
144 lol
Step-by-step explanation:
Answer:
multiply 343 by 2 and then divide that number by 3. the answer is 228.666666666
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