Final answer:
The cost to run Ryan's camping stove for 1 hour is about $0.71. This is calculated by dividing the total cost of the fuel packs ($12.80) by the number of hours they last (18).
Step-by-step explanation:
Ryan's camping stove runs for 18 hours on 4 packs of fuel. The cost of one pack of fuel is $3.20. To calculate the cost to run the camping stove for one hour, first, we must find the total cost of the fuel packs needed for 18 hours. Since there are 4 packs, the total cost is 4 packs × $3.20 per pack, which equals $12.80 for 18 hours of use.
Next, to find the cost per hour, we divide the total cost by the number of hours the stove can run on those fuel packs. So, the cost per hour is $12.80 / 18 hours, which equals approximately $0.71.
Therefore, the cost to run the camping stove for 1 hour is about $0.71.