A water tank holds 657 gallons but is leaking at a rate of 4 gallons per week. A second water tank holds 876 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:
Sometimes setting up the equation is the hardest part. Starting gallons minus (leaking gallons times number of leaking weeks) equal to the other tank, same setup. 657 - 4w = 876 - 7w 3w = 219 w = 73 Checking the math: 657 - 4(73) = 365 876 - 7(73) = 365 73 weeks
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