Question
Suppose a family replaces ten 60-watt incandescent bulbs with 10 30-watt fluorescent lamps. if each light was used for 4 hours per day and the
Suppose a family replaces ten 60-watt incandescent bulbs with 10 30-watt fluorescent lamps. if each light was used for 4 hours per day and the cost of electricity was 10.0 cents/kWh, how much money would they save in a year?
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Introduction to graph theory
Authors: Douglas B. West
2nd edition
131437372, 978-0131437371
