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Question

A peanut company ships its product in a carton that weighs 20 oz when empty. Twenty bags of peanuts are shipped in each carton. The acceptable weight for one bag of peanuts is between 30.5 oz and 33.5 oz, inclusive. If a carton weighs too much or too little, it is opened for inspection. Write and solve a compound inequality to determine x, the weight of cartons that are opened for inspection

The correct answer is: Hence, the compound inequality is 630 oz ≤ x ≤ 690 oz


    Let’s say that the weight of each bag of peanuts is w
    It is given that 30.5 oz ≤ w ≤ 33.5 oz
    Weight of 20 bags of peanuts lies 20  30.5 oz ≤ 20w ≤ 20  33.5 oz

    610 oz ≤ 20w ≤ 670 oz
    Adding 20 oz on all sides

    630 oz ≤ 20w + 20 ≤ 690 oz
    20w + 20 is represented as x, the weight of cartons that are opened for inspection
    So, the inequality is 630 oz ≤ x ≤ 690 oz
    Final Answer:
    Hence, the compound inequality is 630 oz ≤ x ≤ 690 oz

    The compound inequality statement for the weight of inspected cartons is 630 > X > 690. Here, It can also explain like this:
    ¶Empty carton weight = 20 oz.
    Acceptable weight range per bag of peanuts:
    The lower limit is 30.5 oz.
    Maximum weight = 33.5 oz
    20 bags = 20 peanut bags per carton
    Therefore,
    The following is the lower limit for carton weight after filling:
    630 oz = weight of empty carton + (20 * weight per bag) 20 + (20 * 30.5)
    The maximum weight of a carton after it has been filled will be:
    Empty carton weight + (20 * weight per bag) 20 + (20 * 33.5) = 690 oz
    As a result, the compound inequality for the inspected cartons is: 630 > X > 690.

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