2 classes of 21 students each
21 × 2 classes = 42 students in total
42 × 3 mins = 126 minutes for 42 students
10 mins for 2 class pics = 20 minutes
126 + 20 = 146 minutes = 2 hours and 26 minutes
It should take 146 minutes (2 hours and 26 minutes) to take all the pictures.
Answer:
2/3
Step-by-step explanation:
its right
Answer:
Step-by-step explanation:
He took a rest from driving at 4pm. That is proved through there being no change in the number of miles from 4pm to 5pm.
He covered 50 miles from 1pm-2pm and 3pm-4pm. 175-125=50 and 250-200=50.
I am not sure about the answer to part c but it is not iii, so it is either i or ii.
I also do not believe it is i because you can calculate his speed from the given information on the graph so if I were you I would circle ii.
I assume the denominator is (4-√3)
Multiple both top and bottom by (4+√3)
[5(4+√3)]/[(4-√3)(4+√3)]
=[20+5√3]/[4²-(√3)²]
=[20+5√3]/13
