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31 August, 15:59

Your local gas stations are having a price war. During the past 7 days they have

lowered the price of regular gas by $.02 each day. Define a variable. Then write and

solve an equation to find the total change in gas price. Show your work.

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  1. 31 August, 17:24
    0
    Answer: - $ 0.14

    Step-by-step explanation:

    t

    be the total change in the price of gas, what we are solving for in this problem.

    d

    be the number of days the prices has decreased. 7 for this problem.

    c

    be the change in price each day. - $0.02 for this problem (the price has been lowered so this number is negative).

    The formula will be:

    t = d ⋅ c

    Substituting and calculating t

    gives:

    #t = 7 * - $0.02$

    t = - $ 0.14

    Over the last 7 days the price of gas has changed

    - $ 0.14
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