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Mathematics
Algebra
Inequalities
Corinna has $72. She wants to buy a $270 plane ticket. She will save up her earnings from working at the museum where she earns $18 per hour. Which inequality shows the number of hours, n, Corinna must work so that she has a total of at least $270?
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Corinna saves $18 per hour, so the inequality that shows the number of hours, n, Corinna must work is 18n ≥ 270.
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