Answer:
9.75
Step-by-step explanation:
6.5= 20% of 32.50
32.50+6.5= 39
39/4 = 9.75
Answer:
first one is 7
Step-by-step explanation:
The slope is 2x and the y intercept is 5
The slope is positive
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.
