Solve.Frank can type a report in 4 hours and James takes 6 hours. How long will it take the two of them typing together?
A. 6 hr
B. 
hr
C. 
hr
D. 12 hr
Answer: C
Mathematics
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Solve the problem.A cabin cruiser travels 20 miles in the same time that a power boat travels 40 miles. The cruiser travels 5 mph slower than the power boat. Find the speed of each boat.
A. Power boat travels 15 mph and cruiser travels 10 mph. B. Power boat travels 20 mph and cruiser travels 15 mph. C. Power boat travels 10 mph and cruiser travels 5 mph. D. Cannot be determined with information given.
Mathematics
Solve the equation.4|x| = 512
A. ± 
B. 
C. ±18
D. -9
Mathematics
Solve using the addition principle.12 = -17 + x
A. -29 B. -5 C. 5 D. 29
Mathematics
Write an algebraic expression for the quantity. Let x represent the unknown value.Half of a number.
A. 
B. 
+ x
C. x - 
D. 
- x
Mathematics