Question

The guage of an oil tank indicated that it was 1/7 full. After 240 gallons were added, the guage indicated that the tank was now 4/7 full. How many gallons does the tank hold? (Assuming that the guage is accurate)

Answer 1

\[\frac{3}{7} of the tank = 240,\]

Answer 2

\[\frac{3}{7}x=240\]

Answer 3

Solve for x

Answer 4

why is it 3/7

Answer 5

4/7-1/7

Answer 6

bahah, obviously. but why subtract.

Answer 7

cuzz that will equal a full tank

Answer 8

3/7+4/7 will be a full tank

Answer 9

ohh i gotcha.

Answer 10

so, it takes 560 gallons to fill the entire tank?

Answer 11

Yupp :)