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Algebra

Laura wants the average amount of money she spends in four days to be no more than $64. On the first three days she spends $71, $62 and $59. What is the greatest amount she can spend on day 4?

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  1. mean = ∑x/n

    64 = (71+62+64+x)/4

    Solve for x.

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  2. 59

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