Answer:
p = 43
Step-by-step explanation:
p + 7 + 3p + 1 = 180
4p + 8 = 180
4p = 172
p = 43
Answer:
P(d) = 62 - 2d
Step-by-step explanation:
P = pound per square inch
d = days
(52 - 46) / 3 = 2
46 + 2 * 8 = 62
Answer: 2.9 minutes.
Step-by-step explanation:
Given: Rate of filing the tank = 12 gallons per minute
Total volume of reservoir = 35 gallons
Time taken to fill the reservoir = 

hence, time taken to fill the reservoir = 2.9 minutes.
Y= -8/2x+4, hope this helps!
1*2*0.2 = 0.4
Pipe drains 0.4m3 in 30min
Volume of tank = 0.5 * (1.4 + 0.6) * 2 * 1 = 2m3
Time taken = 2/0.4 * 30 = 150min