Kilowatt-hours

If the Lewis family used 648 kilowatt-hours of electricity in 12 days, how many kilowatts hours should they use in 24 days at the same rate of usage

Result

x =  1296 kWh

Solution:

$x=\dfrac{ 24 }{ 12 } \cdot \ 648=1296 \ \text{kWh}$

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