Answer:
180 gallons
Step-by-step explanation:
Each hour, 8 gallons were lost. Thus, in 6 hours,
6 * 8 = 48 gallons were lost
After 6 hours, 132 gallons remained, so before this 6 hours, there were more 48 gallons in it. Thus,
Original amount was 132 + 48 = 180 gallons
Originally, 180 gallons of water was in the pool
6y = 12x + 36 is x= 1 /2 y−3
15y = 45x + 60 is x= 1 /3 y+ −4 /3
For this case we must indicate the cosine of A, of the figure shown. By definition:
Substituting the values we have:
So, we have to:
Option D
30
3 + 8 + 7 + 2 + 6 + 4 = 30
<em>good luck, i hope this helps :)</em>