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10 August, 09:57

How many weeks will it take Justin to save $133 if he saves $9.50/wk? Derive a complete equation to model the problem. Use w to represent the unknown value.

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  1. 10 August, 11:17
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    Let w be the unknown number of weeks. The total amount that Justin saves is the product of the amount he saves every week and the number of weeks. That is,

    ($9.50) x w = $133

    Rearranging the equation for w,

    w = $133 / $9.50

    Thus, the answer is 14.
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