Tank of fuel

A 14.5-gallon tank of fuel is 3/4 full. How many more gallons will it take to fill up the tank?

Result

x =  3.625 gal

Solution:

x=(1−34)⋅ 14.5=298=3.625 galx=(1 - \dfrac{ 3 }{ 4 } ) \cdot \ 14.5=\dfrac{ 29 }{ 8 }=3.625 \ \text{gal}

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