Question

Serena makes $9 per hour cutting lawns. Each day, she earns about $15 in tips. If Serena made no less than $110 on Monday, which inequality represents h, the number of hours she worked on Monday?

Answer 1

Tips per day = $15

Hourly rate = $9

Total earnings = $110

Define h:

h is the number of hours work

Define equation:

9h + 15 ≥ 110

Answer: Equation = 9h + 15 ≥ 110

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Additional:

Find the number of hours worked:

9h + 15 ≥ 110

9h ≥ 110 - 15

9h ≥ 95

h ≥ 10.55

Therefore h must at least be 11

Answer: Serene worked for at least 11 hours