Respuesta :
Answer:
c. $178.
Step-by-step explanation:
We have been given that Hanna is on a standard use plan that has a graduated fee schedule. Standard Use Plan 8.5 cents/kWh for the first 400 kWh. 12 cents/kWh for the next 400 kWh and 14.5 cents/kWh for anything over 800 kWh.
The cost of first 400 kWh will be: [tex]400*8.5\text{ Cents}=3400\text{ Cents}[/tex] Â
The cost of the next 400 kWh will be: [tex]400*12\text{ Cents}=4800\text{ Cents}[/tex]
The remaining units of electricity will be [tex]1465-800=665[/tex].
The cost of remaining 665 kWh will be: [tex]665*14.5\text{ Cents}=9642.5\text{ Cents}[/tex]
[tex]\text{The total cost of Hanna's electricity bill}=(3400+4800+9642.5)\text{ Cents}[/tex]
[tex]\text{The total cost of Hanna's electricity bill}=17842.5\text{ Cents}[/tex]
[tex]\text{The total cost of Hanna's electricity bill}=178.425\text{ Dollars}\approx 178\text{ Dollars}[/tex]
Therefore, the total cost of Hanna's electricity bill will be $178 and option c is the correct choice.
