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A prom ticket at Smith high school is $120.Tom is going to save money for the ticket by walking his neighbor's dog for $15 per week. If tom already has saved $22, what is the minimum number of weeks Tom must walk the dog to earn enough to pay for the prom ticket?



Answer :

ZackFry
120 - 22 = 98.  98 / 15 = 6.533333.  Because you want the minimum, and he can't get paid during 0.53333 of a week,  Tom must walk the dog for a minimum of 7 weeks. 

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