LJ710
09.12.2021 •
Mathematics
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Sandra was comparing the electricity of two different companies. One company is charging
$49 per month and $0.10 per kilowatt used. The other company wanted $39 per month, but
will charge $0.15 for all kilowatts after the first 100 kilowatts. Sandra used the following
system of equations to represent the situation.
Ca= 49 + 0.102
Quizzes
Assignments
Cb = 39 +0.15(2 – 100)
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