Translate the problem to a system of equations, then solve using Cramer's Rule.Twice the water flow in the hot-water pipe is the same as three times the flow in the cold-water pipe. The combined flow is 1200 liters per hour. What is the flow in each pipe?
A. 600 liters/hr hot, 400 liters/hr cold
B. 400 liters/hr hot, 600 liters/hr cold
C. 720 liters/hr hot, 480 liters/hr cold
D. 480 liters/hr hot, 720 liters/hr cold
Answer: C
Mathematics
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Add the integers.-18 + 64
A. 82 B. 56 C. 38 D. 46
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Convert as indicated. Express the answer in decimal form when needed.15,840 feet per hour to miles per hour
A. 79.2 mi/hr B. 3.5 mi/hr C. 4 mi/hr D. 3 mi/hr
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Simplify by first converting to rational exponents. Assume that all variables represent positive real numbers.
A. 
B. v
C. 
D. 
Mathematics
Divide.
÷ 
A. - 1
B. 
C. - 
D. - 34
Mathematics