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2 June, 07:25

Food mix A contains 2 % fat, and food mix B contains 7 % fat. A 20 -kilogram diet mix of foods A and B is formed. If x kilograms of food A are used, write an algebraic expression that represents the total number of kilograms of fat in the final food mix. Simplify the expression.

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  1. 2 June, 07:53
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    The required expression is y = 1.4 - 0.05x

    Step-by-step explanation:

    Consider the provided information.

    Food mix A contains 2% fat and food mix B contains 7 % fat.

    Let x kilograms of food A are used, in a 20 -kilogram mixture.

    Thus, 20 - x kilograms of food B are used, in a 20 -kilogram mixture.

    Now It is given that A contains 2% fat and food mix B contains 7 % fat.

    2% and 7% can be written as 0.02 and 0.07 respectively. Let represent the total fat with y.

    Thus, the required expression is:

    y = 2% (x) + 7% (20 - x)

    y = 0.02 (x) + 0.07 (20 - x)

    y = 0.02x + 1.4 - 0.07x

    y = 1.4 - 0.05x

    Hence, the required expression is y = 1.4 - 0.05x
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