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A machine worked for 5 hours and used 4 kilowatts of electricity. The machine used __ of a kilowatt each hour it worked.
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A machine worked for 5 hours and used 4 kilowatts of electricity. The machine used __ of a kilowatt each hour it worked.

User Gerhard Schlager
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the machine uses 0.8 kw per hour
User Keith Grout
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