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31 July, 22:11

A factory sells backpacks for $40 each. The cost to make 1 backpack is $10.00. In addition to the costs of making backpacks, the factory has operating expenses of $12,000 per week. The factory's goal is to make a profit of at least $9800 each week. Which inequality represents the number of backpacks, x, that need to be sold each week for the factory to meet this goal?

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  1. 31 July, 23:18
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    x (40-10) - 12000≥980

    The factory must sell 433 backpacks to meet its weekly goal.

    Hi, to answer this question we have to write an inequality.

    So, since the backpacks (x) are sold by $40 and the cost of making one is $10, the revenue per bag is equal to 40x and the cost is 10x.

    12,000 of operating expenses are also expenses.

    So, for the profit:

    Profit = revenue - cost

    P = 40x-10x-12,000

    P = x (40-10) - 12000

    The factory goal is to make a profit of at least $980 each week, so, the profit must be greater or equal than 980.

    x (40-10) - 12000≥980

    Solving for x

    30x-12000≥980

    30x≥980+12000

    30x ≥12980

    x≥12980/30

    x≥432.6

    x≥433 (rounded, because if the sell 432 they will not meet the goal)

    The factory must sell 433 backpacks to meet its weekly goal.
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