Jonas earns $9 per hour as a lifeguard and $11 per hour as a swim instructor. Last week he worked a total of 40 hours at the pool, 10 of which were teaching swim lessons. Which expression and value show the total amount of money that he earned last week?
9 × 10 + 11 × 30; $420
9 × 10 + 11 × 30; $210
9 × 30 + 11 × 10; $419
9 × 30 + 11 × 10; $380
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Step-by-step explanation:
Jonas earns $9 per hour as a lifeguard and $11 per hour as a swim instructor. Last week he worked a total of 40 hours at the pool, 10 of which were teaching swim lessons. Which expression and value show the total amount of money that he earned last week?
Answered by
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Answer:
correct answers is option D
Step-by-step explanation:
9×39+11×19;$380
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