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25 June, 20:11

Manuel earns $400 a week plus a 3% commission on everything he sells. Write and solve an inequality to determine how much he must sell to have a weekly income of at least $700. Interpret the solution.

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  1. 25 June, 20:13
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    Let Manuel’s sales be S then to have a weekly income of at least $700 we have 400+0.03S≥700.

    0.03S≥300, S≥300/0.03, S≥30000/3, S≥$10,000. His sales must be at least $10,000.
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