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Ryan is buying batteries for his remote control cars. Charge Zone batteries cost $15.80 for 20 batteries. Electrocell batteries cost $8.10 for 10 batteries. If both brands of batteries last equally long, which brand is the better value?

1 answer

To determine which brand of batteries offers a better value, we can calculate the cost per battery for each brand.

  1. Charge Zone batteries:

    • Cost: $15.80 for 20 batteries
    • Cost per battery = Total Cost / Number of Batteries = $15.80 / 20 = $0.79 per battery

  2. Electrocell batteries:

    • Cost: $8.10 for 10 batteries
    • Cost per battery = Total Cost / Number of Batteries = $8.10 / 10 = $0.81 per battery

Now, let's compare the cost per battery:

  • Charge Zone batteries: $0.79 per battery
  • Electrocell batteries: $0.81 per battery

Since $0.79 is less than $0.81, Charge Zone batteries are the better value.