Jcpenny wrote:
If Henry were to add 5 gallons of water to a tank that is already 3/4 full of water, the tank would be 7/8 full. How many gallons of water would the tank hold if it were full?
A.25
B.40
C.64
D.80
E.96
We can create the following equation in which n = the capacity of the tank:
(3/4)n + 5 = (7/8)n
Multiplying the equation by 8, we have:
6n + 40 = 7n
40 = n
Answer: B
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