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geniusboy [140]
3 years ago
11

An electric company charges a certain rate per kilowatt-hour (kWh) of electricity used and an administrative fee of $3.50. The c

ompany charged zhao $63.25 for using 800 kWh of electricity. Zhao uses the equation, 63.25 = 800r + 3.50 to represent the situation. What does the variable r represent in the equation?
Mathematics
1 answer:
Triss [41]3 years ago
4 0

Answer:

Variable r represents the slope of the equation.

Step-by-step explanation:

Given that the administrative fees that company charge is $3.50.

Also, the Zhao has a bill of $63.25.

The equation used by Zhao is

63.25=r(800)+3.50

We can compare the equation of a line in the slope-intercept form.

y=mx+c

We can see the y-intercept is $3.50 that is a fixed cost. And the company charged $63.25 that is the dependent variable.

Also, variable r that is the rate per kilowatt-hour (kWh) represents the slope of the equation.

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