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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Use Simpson's Rule with n = 4 steps to estimate the integral.
A. - 
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B. - 
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C. - 
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D. -(1 + 2
) ?
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Solve the problem.The perimeter of a rectangle is 48 m. If the width were doubled and the length were increased by 5 m, the perimeter would be 68 m. What are the length and width of the rectangle?
A. width 12, length 12 B. width 7, length 12 C. width 19, length 5 D. width 5, length 19
Mathematics
Evaluate the expression.26 + 7 ? 2
A. 234 B. 40 C. 12 D. 66
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Simplify.
÷ 
A. 
B. 
C. 
D. 
Mathematics