A water tank holds 666 gallons but is leaking at a rate of 4 gallons per week. A second water tank holds 888 gallons but is leak ing at a rate of 7 gallons per week. After how many weeks will the amount of water in the two tanks be the same?
1 answer:
Answer:
74 weeks
Step-by-step explanation:
Given :
Let x = number of weeks
Gallon A:
Capacity = 666
Leak rate = 4 gallons per week
666 - 4x
Gallon B:
Capacity = 888
Leak rate = 7 gallons per week
888 - 7x
666- 4x = 888 - 7x
666 - 888 = - 7x + 4x
-222 = - 3x
x = 222 / 3
x = 74
After 74 weeks
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