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7 March, 07:21

Lailah earns $9 per week working at the aquarium. Write and solve an inequality that can be used to find how many hours she must work in a week to earn at least $135.

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  1. 7 March, 09:11
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    Answer: she must work for at least 15 hours in a week to earn at least $135

    Step-by-step explanation:

    Let x represent the number of hours that Lailah must work in a week to earn at least $135.

    Lailah earns $9 per week working at the aquarium. This means that in a week in which she worked for x hours, the total amount of money that she would earn is 9x

    Therefore, the inequality that can be used to find how many hours she must work in a week to earn at least $135 would be

    9x ≥ 135

    x ≥ 135/9

    x ≥ 15
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