Solve.The speed of a vehicle is inversely proportional to the time it takes to travel a fixed distance. If a vehicle travels a fixed distance at 40 miles per hour in 30 minutes, how fast must it travel to cover the same distance in 25 minutes?
A. 
mph
B. 48 mph
C. 
mph
D. 
mph
Answer: B
Mathematics
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A. 318 B. 330 C. 320 D. 300
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Solve the system by the elimination method. x - 5y = 4-5x - 5y = 40
A. {(2, -6)} B. {(-5, -3)} C. ? D. {(-6, -2)}
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Find the inverse of the matrix.
A. 
B. 
C. 
D. 
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Solve the equation for the indicated variable.
+ 
= c
for a
A. a = 
B. a = bc - 
C. a = 
D. a = 
- b
Mathematics