SOLUTION: weight of a tank full with water is 27.5kg.Its weight is 12.2kg when the tank is 1/4 full.Find weight of empty tank
Algebra.Com
Question 769883: weight of a tank full with water is 27.5kg.Its weight is 12.2kg when the tank is 1/4 full.Find weight of empty tank
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
Let m = mass of the tank by itself (when empty).
Let w = mass of water in FULL tank.
Full tank is kg.
Quarter-full tank is kg.
Those are two equations using unknown variables m and w. Various ways possible to solve the system.
,
which is just subtracting the Full equation from the Quarter-full equation.
kg., the empty tank.
-------
You can continue for finding w. Either original equation can be used.
since we found m now,
kg. water when full.
RELATED QUESTIONS
a full propane gas tank weighs 50 pounds. after 3/4th of the gas is used up, the tank and (answered by ewatrrr)
A fish tank weighs 11.5 pounds when it is full of water and 34 pounds when it is 3/4... (answered by Alan3354)
An open rectangular tank is made of iron 5 cm thick. The inner dimensions are: 1.75 by... (answered by ikleyn)
A rectangular tank with a square base is 1/4
full of water. The side length of the... (answered by josgarithmetic,MathTherapy)
Water is pouring into a tank at a constant rate. When the tank is full, 10 pumps of equal (answered by richwmiller)
A cylindrical water tank is 1/3 full. When 3500L was added to it, it bacme 5/7 full. What (answered by stanbon)
when 4 liters are added to a tank that is 1/3 full the tank is then 1/2 full. what is the (answered by rfer)
A pump is filling a tank with water at a constant rate while water in the tank is also... (answered by ankor@dixie-net.com)
When 16 litres are added to a gas tank which is 1/2 full, the tank is 2/3 full. Find the... (answered by ewatrrr)