SOLUTION: A bathtub contains 45 gallons of water and the total weight of the tub and water is approximately 767.525 pounds. You pull the plug and the water begins to drain. Let v represent

Algebra ->  Finance -> SOLUTION: A bathtub contains 45 gallons of water and the total weight of the tub and water is approximately 767.525 pounds. You pull the plug and the water begins to drain. Let v represent      Log On


   

Question 1125977: A bathtub contains 45 gallons of water and the total weight of the tub and water is approximately 767.525 pounds. You pull the plug and the water begins to drain.
Let v represent the number of gallons of water that has drained from the tub since the plug was pulled. Note that water weights 8.345 pounds per gallon.
A) write an expression in terms of v that represents the weight of the water that has drained from the tub (in pounds).
B) write an expression in terms of v that represents the total weight of the tub and water (in pounds).
C) how much does the tub weigh when there in no water in it?
D) if the weight of the tub and water is 617.315 pounds, how many gallons of water are in the tub?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The empty tub weighs %28767.525-45%2A8.345%29pounds=392%2Apounds.

If v gallons of water is allowed to drain, then amount of pounds of water drained is 8.345%2Av. In this example, this v can be between 0 and 45.