Joel and Gunner both run the 800-meter race. The line graph below shows their times for the first five meets of the track season
. What was Gunner's range of times in the first five meets?
A) 1.0 Minute
B) 0.75 Minute
C) 0.5 Minute
D) 0.25 Minute
Part B
In how many meets did Joel have a faster time than Gunner?
A) 1
B) 2
C) 3
D) 4
Part C
If it were possible for Gunner to continue improving his time as he has been, what would be a good prediction for his time in the sixth meet.
A) 2.0 Minutes
B) 1.75 Minutes
C) 1.5 Minutes
D) 1.25 Minutes
A) 1.0 Minute
B) 0.75 Minute
C) 0.5 Minute
D) 0.25 Minute
Part B
In how many meets did Joel have a faster time than Gunner?
A) 1
B) 2
C) 3
D) 4
Part C
If it were possible for Gunner to continue improving his time as he has been, what would be a good prediction for his time in the sixth meet.
A) 2.0 Minutes
B) 1.75 Minutes
C) 1.5 Minutes
D) 1.25 Minutes
2 answers:
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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