Answer:
Equations: [tex]2\cdot t=108,\ 5\cdot s=108.[/tex]
Solutions: t=54 minutes, s= 21.6 minutes.
Step-by-step explanation:
1. Drain A empties a pool at a rate of 2 gal/min. The pool has 108 gallons of water in it. Let t minutes be the time needed to empty this pool, then
[tex]2\cdot t=108,\\ \\t=108:2=54\ minutes.[/tex]
2. Drain B empties a pool at a rate of 5 gal/min. The pool has 108 gallons of water in it. Let s minutes be the time needed to empty this pool, then
[tex]5\cdot s=108,\\ \\s=108:5=21.6\ minutes.[/tex]
