Solve the problem.In a race, Car A starts 1 mile behind Car B. Car A is traveling at 55 miles per hour, while Car B is traveling at 40 miles per hour. How long will it take for Car A to overtake Car B?
A. 16 minutes
B. 2
minutes
C. 
minutes
D. 4 minutes
Answer: D
Mathematics
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Find the product.10x4(-8x6 - 7x3)
A. -150x4 B. -150x10 - 150x7 C. -80x10 - 7x3 D. -80x10 - 70x7
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Solve the problem.Let u = -2i + 9j, v = 2i + 3j, and w = i - j. Write u = u1 + u2 where u1 is parallel to v and u2 is parallel to w.
A. u1 = 1.400 v u2 = -4.800w B. u1 = -4v u2 = -27w C. u1 = 0.7143 v u2 = -0.2083w D. u1 = 3v u2 = 2w
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Divide.
A. 24.6 B. 0.246 C. 246 D. 2.46
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Solve the problem.The value of a building decreased from $769,000 to $691,000 over the past decade. What was the average annual change in value?
A. $780 B. -$780 C. -$7800 D. $7800
Mathematics