Gasoline tank 2

A gasoline tank is 1/6 full. When the family added 25 liters of gasoline, it became 3/4 full. How many more liters are needed to fill them? Show your solution.

Final Answer:

x =  10.7143 l

Step-by-step explanation:


V/6 + 25 = 3/4·V
x = V - 3/4·V

7V = 300
V-4x = 0

Row 2 - 1/7 · Row 1 → Row 2
7V = 300
-4x = -42.86


x = -42.85714286/-4 = 10.71428571
V = 300/7 = 42.85714286

V = 300/7 ≈ 42.857143
x = 75/7 ≈ 10.714286

Our linear equations calculator calculates it.



Help us improve the example. If you find a mistake, let us know. Thank you!







Tips for related online calculators
Need help calculating a sum, simplifying, or multiplying fractions? Try our fraction calculator.
Do you have a linear equation or system of equations and are looking for a solution? Or do you have a quadratic equation?
Tip: Our volume units converter will help you convert volume units.

You need to know the following knowledge to solve this word math problem:

algebranumbersUnits of physical quantitiesGrade of the word problem

Related math problems and questions: