Solve the problem.A 100 gal tank is half full of distilled water. At time = 0, a solution containing 2 lb/gal of concentrate enters the tank at the rate of 4 gal/min, and the well-stirred mixture is withdrawn at the rate of 
When the tank is full, how many pounds of concentrate will it contain?
A. 175 pounds
B. 200 pounds
C. 150 pounds
D. 187.5 pounds
Answer: D
Mathematics
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Convert the given unit of measure to the measure shown.20 kilograms to milligrams
A. 20,000,000 milligrams B. 0.02 milligram C. 2000 milligrams D. 0.2 milligram
Mathematics
Solve Z = ûX2L + X2C. Find Z when XL = 31 ê and XC = 100 ê.
a. 11.5 ohms b. 18.2 ohms c. 36.6 ohms d. 52.4 ohms e. 104.7 ohms
Mathematics
If a square with side length 1 unit and a circle with circumference 1 unit are drawn on top of each other, will the square be inside or outside the circle? Explain.
What will be an ideal response?
Mathematics
Factor the trinomial completely. If the polynomial cannot be factored, write "prime."a2 - 6ab - 27b2
A. (a - 3b)(a + b) B. (a - 3b)(a + 9b) C. (a + 3b)(a - 9b) D. prime
Mathematics