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Ivan is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x represent the number of weeks Ivan has been adding money. Suppose that x and y are related by the equation y=550+40x. What is the change per week in the amount of money in the bank? What was the starting amount of money in the account?

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5 answers
  1. Looks like 550 is starting amount and 40 is the change per week.

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  2. Note that a change can be an increase or a decrease. For an increase, use positive number. For decrease use, negative number.

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  3. Since you indicate that Ivan is only "adding money," the change will only be positive.

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  4. As of 2009, the highest temperature ever recorded in tennessee was 45 C. Find the corresponding Fahrenheit temperature.

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  5. First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked.

    T(°C) = (T(°F) - 32) × 5/9

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