If you pump 260 gallons into a 600-gallon tank, what is the percentage of the tank that is full?

To find the percentage of the tank that is full, you need to divide the amount of fluid pumped into the tank by the total capacity of the tank, and then multiply the result by 100 to convert it into a percentage.

In this case, you have pumped 260 gallons into a tank that has a total capacity of 600 gallons. The calculation looks like this:

1. Divide the filled volume (260 gallons) by the total volume (600 gallons):

( \frac{260}{600} = 0.4333 ) (approximately)

2. To convert this decimal into a percentage, you multiply by 100:

( 0.4333 \times 100 = 43.33% )

When rounding, this percentage indicates that the tank is approximately 43% full. Therefore, the choice indicating 43% accurately reflects the calculation of how full the tank is after pumping in 260 gallons.