Alexander B. answered • 05/16/18

Advanced Math and Science Tutoring and Test Prep online (SAT, ACT)

Equation in general form for any arbitrary usage KWH (kilowatt-hours) could be written as:

AMT = 1.07 x (40 + KWH x 0.02)

AMT = 1.07 x (40 + KWH x 0.02)

Assuming electricity usage KWH = 40 per month, the equation for the total amount AMT could be written as follows:

AMT = 1.07 x (40 + 40 x 0.02) = $43.66

*Note: the problem definition seems incomplete - it states just 40 hours without specifying the power consumption (KW). The solution is given on the assumption of 40 kilowatt-hours (KWH)*