Respuesta :
Answer:
The sea cow can stay under water for 16 minutes.
Step-by-step explanation:
A hippopotamus can stay under water for 15 minutes.
A sea cow can stay under water [tex]y[/tex] minutes and this is 11 minutes longer than one-third the time a hippopotamus can.
So, "11 minutes longer than one-third the time a hippopotamus can" means: [tex][\frac{1}{3}(15)+11] minutes[/tex]
Thus, the equation will be: [tex]y= \frac{1}{3}(15)+11[/tex]
Now, solving the above equation, we will get.........
[tex]y= \frac{1}{3}(15)+11 \\ \\ y=5+11= 16[/tex]
So, the sea cow can stay under water for 16 minutes.
