Question

If a gas tank is labeled with a capacity of 70 liters, how many U.S. gallons will it hold? (Note: There are four quarts in one gallon.) Round off your answer to the nearest tenth

Answer 1

Bearing in mind that, there are 3.78 Liters in 1 US gallon, then, how many gallons in 70 liters?

$\bf \begin{array}{ccllll} liters&gallons(US)\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 3.78&1\\ 70&g \end{array}\implies \cfrac{3.78}{70}=\cfrac{1}{g}\implies g=\cfrac{70\cdot 1}{3.78}$