Carla and Rob left a 15% tip after having lunch at a restaurant. The amount of the tip was $3. Carla’s lunch cost $12. Write an
equation you can use to find x, the cost of Rob’s lunch.
1 answer:
Answer:
0.15(x + 12) = 3
Step-by-step explanation:
The cost of the lunch before the tip was 12 + x
The tip is 15% of the cost of lunch: 0.15(x + 12)
The tip was $3
0.15(x + 12) = 3
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