Solve the problem.A water tank can be filled in 5 minutes and emptied in 8 minutes. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?
A. 13
minutes
B. 
minutes
C. 
minutes
D. 3
minutes
Answer: A
You might also like to view...
Provide an appropriate response.A music CD costs $9.99. How much change would you receive if you paid with a twenty-dollar bill?
A. $10.01 B. $11.01 C. $10.99 D. $9.01
Write the inequalities that describe the constraints on production.The Pen-Ink Company manufactures two ballpoint pens: silver and gold. The silver requires 7 minutes in a grinder and 12 minutes in a bonder. The gold requires 7 minutes in a grinder and 9 minutes in a bonder. The grinder can be run no more than 610 minutes per day and the bonder no more than 230 minutes per day. Let x represent the silver pens and let y represent the gold pens.
A. x + y ? 610, x + y ? 230, x + y ? 840, 
, 
B. 0 ? 19x + 16y ? 840, 
, 
C. 7x + 12y ? 610, 7x + 9y ? 230, 
, 
D. 7x + 7y ? 610, 12x + 9y ? 230, 
, 
Clear fractions and solve.
+ 
- 
= 0
A. - 
B. -3
C. 3
D. 
Find the absolute value.|15|
A. 1 B. -15 C. 15 D. 0