Algebra

You are pulling a raft up a river. You can make 15 miles each day. Each night, while you are asleep, however, the current pushes the raft 3 miles back downstream. If you set out on Tuesday to get to a town 85 miles upstream, on which day will you arrive?

Answer choices
1. Monday
2. Wednesday
3. Tuesday

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  1. each day you make 12 miles
    After 6 days you have gone 72 miles
    on the 7th day you'd make it to mile 87, so you're done.
    so, what day is that?

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