Solve.The speed of a stream is 4 mph. If a boat travels 78 miles downstream in the same time that it takes to travel 39 miles upstream, what is the speed of the boat in still water?

A. 15 mph
B. 12 mph
C. 8 mph
D. 14 mph


Answer: B

Mathematics

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Solve. Give your answer as a mixed numeral.A worker has readings that take 1 minutes each to read and record. How many readings can be completed in 72 minutes?

A. 8 readings B. 25 readings C. 96 readings D. 54 readings

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Subtract.

A. 73,567 B. 65,567 C. 65,565 D. 65,505

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Divide.

A. 0.004524 B. 0.4524 C. 4.524 D. 0.0004524

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Perform the indicated operation and simplify. + 

A.
B.  
C.  
D.  

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