Answer:
2 hours 18 minutes (to the nearest minute)
Step-by-step explanation:
6.5 / 0.5 hours
--> Multiply the whole equation by 4.61538461538 so that 6.5 becomes 30
= 30 papers in 2.30769230769 hours = 02:18:28
Mrs. Bell will take 2 hrs 18 mins approximately.
The unitary approach is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.
Given that 6.5 students' papers can be checked in 0.5 hours
1 student's paper can be checked in 0.5/6.5 hours
30 students' paper can be checked in (0.5 /6.5)*30 hours = 2.307 hours
Therefore, Mrs. Bell will take 2 hrs 18 mins approximately.
To know more about the unitary method refer to :
https://brainly.com/question/27944694
#SPJ2
