contestada

val's whole house central air conditioner uses 2,500 watts when running. Val runs the AC 4 hours per summer day. Electricity costs (10 cents)/(1 kilowatt-hour). How nuch does Val's AC cost to run for a summer month of 30 days?​

Respuesta :

sqdancefan

9514 1404 393

Answer:

  $30

Step-by-step explanation:

Val's cost is ...

  [tex](2500\text{ W})\times\dfrac{4\text{ h}}{1\text{ da}}\cdot\dfrac{1\text{ kW}}{1000\text{ W}}\cdot\dfrac{\$0.10}{1\text{ kWh}}\times30\text{ da}\\\\=\dfrac{2500\cdot4\cdot\$0.10\cdot30}{1000}=\boxed{\$30}[/tex]

It costs Val $30 a month to run her AC.

Otras preguntas