Answer:
answer should be 52.4 mins
Step-by-step explanation:
find the midpoint for each time:
1. 15mins = 7students
2. 45mins = 27 students
3. 75mins = 12 students
4. 100 = 4students
Then, do the normal mean calculation by adding up all the values and dividing it by 50.
7*15 + 27*45 + 12*75 + 100*4 = 2620
2620/50 = 52.4mins
What’s the question? So you could put point s
To divide fractions you swap the numerator & denominator on the second fraction, the multiply the new numerators togeather & multiply the newdenominator together to get the answer. example attached.
I hope this helps click on the Picture to see the rest of the answer