Violet is watching the sand in a hourglass drain from the upper portion to the lower portion of the
glass. she wonders how fast the sand is draining.
asse
which unit rates would be reasonable for violet to use to describe how fast the sand is draining
from the upper portion to the lower portion of the glass?
intei
select each correct answer.
end
cub cinches per second
liters per hour
gallons per hour
cubic centimeters per minute