Question

The container that holds the water for the football team is 3/10 full. After pouring in 7 gallons of water, it is 4/5 full. How many gallons can the container hold?

Answer 1

Suppose it can hold X gallons of water.

so the current weight is 0.3X

Now, you add 7 gallons and it's 0.8X full

That means 0.3X + 7 = 0.8X

Solve for X:

0.5X = 7

X = 14

so it can hold 14 gallons

Answer 2

Thank you!!