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8 April, 07:37

In a recent air quality study, there were 64 unhealthy air quality days in City A. This is 4 more than twice the number of unhealthy air quality days in City B. How many unhealthy air quality days were there in City B?

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  1. 8 April, 08:02
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    The answer to your question is: 30 days

    Step-by-step explanation:

    City A has 64 unhealthy air quality days this is 4 more than twice the number of unhealthy air quality days in City B.

    # unhealthy days in city A = 64

    # unhealthy days in city B = B

    Equation

    64 = 2B + 4

    64 - 4 = 2B

    60 = 2B

    B = 30 days
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