The correct answer is choice B.
Answer: 27
Step-by-step explanation:
No. Of juniors: 8
Total students: 30
8/30 x 100 = 26.66
Rounds to (whole percent): 27
Answer: 80 cubic feet
Step-by-step explanation:
Hello! Your question was not very clear, but I'm assuming you need to find the volume of the sandbox.
To find volume, you need to multiply height by width by length, which is h*l*w.
Height: 1 foot
Width: 8 feet
Length: 10 feet
V=8*10*1=80 cubic feet.
Answer:
a. 
b. 
c. 
Step-by-step explanation:
a. The volume of water initially in the fish tank = 15 liters
The volume of brine added per minute = 5 liters per minute
The rate at which the mixture is drained = 5 liters per minute
The amount of salt in the fish tank after t minutes = x
Where the volume of water with x grams of salt = 15 liters
dx = (5·c - 5·c/3)×dt = 20/3·c = 

b. The amount of salt, x after t minutes is given by the relation




c. Given that in 10 minutes, the amount of salt in the tank = 25 grams, and the volume is 15 liters, we have;




Answer:
p ≥ 7/4
Step-by-step explanation:
p +1/4 - (1/4) ≥ 2 - (1/4)
p ≥ 7/4