Last month, your electric bill was $25.32 for 450 kilowatt-hours of electricity. At that rate, what would be the bill for 240 kilowatt-hours?
To calculate the bill for 240 kilowatt-hours of electricity, we can use a proportional relationship based on the previous month's bill.
First, let's determine the rate of cost per kilowatt-hour. We can divide the total bill amount ($25.32) by the total kilowatt-hours (450) from the previous month:
Rate = Total bill amount / Total kilowatt-hours
Rate = $25.32 / 450 kWh
Rate ≈ $0.056 per kilowatt-hour
Now that we have the rate, we can calculate the bill for 240 kilowatt-hours by multiplying the rate per kilowatt-hour by the number of kilowatt-hours (240):
Bill = Rate * Number of kilowatt-hours
Bill = $0.056 per kilowatt-hour * 240 kWh
Bill ≈ $13.44
Therefore, at the same rate, the bill for 240 kilowatt-hours of electricity would be approximately $13.44.
25.32/450 = x/240
Cross multiply and solve for x.