how many gallons will it hold

Question

The container that holds the water for the football team is
7/10
full. After pouring out
6
gallons of water, it is
1/2
full. How many gallons can the container hold?

Answer 1

Let x = the capacity (in gallons) of the container

 

Then, (7/10)x - 6 = (1/2)x

 

Multiply both sides by the LCD, 10 to obtain:  7x - 60 = 5x

 

                                                                       2x = 60

 

                                                                         x = 30 gal