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22 April, 19:37

A commuter has $245 in his computer savings account. This account changes by $-15 each week he buys a ticket. In one period, the account changes by $-240. For how many weeks did the commuter buy tickets? How much must he add to this account if he wants to have 20 weeks worth of tickets in his account

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  1. 22 April, 21:11
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    He needs $395, cuz he already had $5, and 15*20=300. subtract the 5 from 300.
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