Math/Algebra?

The equation y=10.8x+6.8 estimates the amount that businesses will spend, in billions of dollars, on a certain business technology, where X is the number of years after 2004. For what years will be spending be more than $104 billion?

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  • 4 weeks ago

    y = 10.8x + 6.8 estimates the amount that businesses will spend, in billions of dollars

    Now when is y = $104 billion

    So, plug y = 104

    104 = 10.8x + 6.8

    10.8x = 97.2

    x = 97.2/10.8 = 9

    So, year = 2004 +9 = 2013

    Spending will be more than $104 billion more than _______9_____ years after 2004.

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