A tank initially contains 100 lb of salt dissolved in 200 gal of water. Saltwater containing 4 lb of salt per gal enters the tank at the rate of 5 gal per min. The mixture (kept uniform by stirring) is removed at the same rate. How many pounds of salt are in the tank after an hour?
What will be an ideal response?
643.81 lb
Mathematics
You might also like to view...
Adjust the problem so that the coefficient is in the proper form.45 × 104
A. 4.5 × 104 B. 4.5 × 103 C. 0.45 × 104 D. 4.5 × 105
Mathematics
Solve the problem.On our moon, the acceleration of gravity is 1.6 m/sec2. If a rock is dropped into a crevasse, how fast will it be going just before it hits bottom 45 seconds later?
A. -36 m/sec B. 72 m/sec C. 3240 m/sec D. -72 m/sec
Mathematics
Divide and simplify.
÷ 5
A. 
B. 
C. 
D. None of these
Mathematics
Translate the phrase to an algebraic expression. Use x to represent "a number."The sum of -18 and a number
A. 18 + x B. -18x C. -18 - x D. -18 + x
Mathematics