A stove with 2 hotplates is used to prepare a meal. The first plate is rated at 1.5 kW, and the secon plate at y kW. The duration of usage is as follows: • Plate 1 (1.5 kW): z minutes Plate 2 (y kW): 30 minutes The cost of energy is R2/kWh. Calculate the total cost (in Rands) of preparing the meal.

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A stove with 2 hotplates is used to prepare a meal. The first plate is rated at 1.5 kW, and the second
plate at y kW. The duration of usage is as follows:
• Plate 1 (1.5 kW): a minutes
• Plate 2 (y kW): 30 minutes
The cost of energy is R2/kWh. Calculate the total cost (in Rands) of preparing the meal.
Transcribed Image Text:A stove with 2 hotplates is used to prepare a meal. The first plate is rated at 1.5 kW, and the second plate at y kW. The duration of usage is as follows: • Plate 1 (1.5 kW): a minutes • Plate 2 (y kW): 30 minutes The cost of energy is R2/kWh. Calculate the total cost (in Rands) of preparing the meal.
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