Answer:
It will take 6 minutes for the bathtub to be filled.
Step-by-step explanation:
[tex]\left[\begin{array}{ccccc}time&hot&cold&total&full\\1&2/30&3/30&5/30&under\\2&4/30&6/30&10/30&under\\3&6/30&9/30&15/30&under\\4&8/30&12/30&20/30&under\\5&10/30&15/30&25/30&under\\6&12/30&18/30&30/30&filled\\7&14/30&21/30&35/30&over\\8&16/30&24/30&40/30&over\\9&18/30&27/30&45/30&over\\10&20/30&30/30&50/30&over\end{array}\right][/tex]
