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Walter is trying to control his home energy costs. His bill consists of a monthly flat fee of plus per kilowatt hour of electricity used. If Walter does not want his electric bill to exceed per month, what is the maximum whole number of kilowatt hours he can use?
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Q. Walter is trying to control his home energy costs. His bill consists of a monthly flat fee of plus per kilowatt hour of electricity used. If Walter does not want his electric bill to exceed per month, what is the maximum whole number of kilowatt hours he can use?
- Determine Maximum Amount: Determine the maximum amount Walter is willing to pay for electricity usage.Walter does not want his electric bill to exceed per month. This is the total amount that includes the flat fee and the cost of electricity used.
- Subtract Flat Fee: Subtract the flat fee from the total maximum amount to find the maximum amount available for electricity usage.Maximum amount for electricity usage = Total maximum amount - Flat feeMaximum amount for electricity usage = - Maximum amount for electricity usage =
- Calculate Maximum Kilowatt Hours: Calculate the maximum number of kilowatt hours Walter can use by dividing the maximum amount for electricity usage by the cost per kilowatt hour.Maximum kilowatt hours = Maximum amount for electricity usage / Cost per kilowatt hourMaximum kilowatt hours = per kilowatt hourMaximum kilowatt hours =
- Ensure Whole Number: Since Walter wants to know the maximum whole number of kilowatt hours, we need to ensure that the result from Step is a whole number. In this case, it is already a whole number, so no further action is needed.
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