Hello!
h = -9.7 - 9.7
h = -19.4
Enjoy.
Answer:
126
Step-by-step explanation:
Total volume of sand = pi/3*(6^2)*(15) + pi*(6)^2*(30) = 1260*pi mm^3
So it will therefore take 1260*pi/10*pi = 126 seconds for all of the sand from the top hourglass to drip down to the bottom hourglass.
Answer:
1-
Step-by-step explanation:
because 1 was removed from it
She worked 50.5 hours last week.
7.80x40=312
352.95-312=40.95
40.95/4.90=10.5
10.5+40=50.5
The answer to this is C. 72
