Number of kilowatt-hours Total cost (dollars)
1,650 198.00 . A use information to find the unit rate in dorllars for each company. B find a total cost in dollars of buying 2,375 kilowatt-hours.
A. the unit rate of the first company is
150 / 1250 = $0.12 per kilowatt-hour
the unit rate of the second company is
198 / 1650 = $0.12 per kilowatt-hour
They both charge the same amount
B. The total cost of buying 2,375 kilowatt-hours is
(0.12)(2375) = $285
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