Kilowatt-hours

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

Correct answer:

x =  1296 kWh

Step-by-step explanation:

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

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