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16 June, 08:42

You have $18 to spend for lunch during a 5 day work week. It costs you about $1.50 to make lunch at home and about $5 to buy a lunch. How many times each work week should you make a lunch at home if you want to buy lunch as often as possible?

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  1. 16 June, 12:14
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    So the fit is 2 lunch at home and 3 lunch buy

    Step-by-step explanation:

    Let x represents for luch at home and y represents for lunch you buy

    So, we can form an equation:

    18 = 1.5x + 5y

    To find how many times each work week should you make a lunch at home if you want to buy lunch as often as possible, it means y always greater than x and they are whole numbers.

    We need to create a table and use the test:

    x y Total cost

    1 1 6.5

    1 2 11.5

    2 3 15

    3 4 24.5

    So the fit is 2 lunch at home and 3 lunch buy
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