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OpenStudy (anonymous):
A freshwater tank holds 400 gallons and evaporates 2 gallons per week. A salt water tank holds 451 gallons and evaporates 5 gallons per week. In how many weeks will the two tanks hold the same amount? 7 9 15 17 ANSWER ONLY PLEASE:)
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OpenStudy (anonymous):
17
OpenStudy (anonymous):
400-2x=451-5x 3x=51 x=17
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