Solve the problem. Round to an appropriate number of significant digits.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 1500 ?/hr. What is the flow in each pipe?
A. 900 ?/hr hot, 600 ?/hr cold
B. 750 ?/hr hot, 500 ?/hr cold
C. 600 ?/hr hot, 900 ?/hr cold
D. 500 ?/hr hot, 750 ?/hr cold
Answer: A
Mathematics
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