jaay8747 jaay8747
  • 10-06-2018
  • Mathematics
contestada

Suppose energy costs 0.08 per kilowatt-hour how much would it cost to keep a 40 watt porch light on all night every night for 1 month

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 10-06-2018
(30 days) * (12 h/day) * (0.040 kW) * ($0.08/kWh) = $1.152

It costs about $1.15 to keep the light on half the time for a month.
Answer Link

Otras preguntas

How do you determine the y-intercept and the x-intercept in an algebraic equation? I'm trying to figure out how to tell which is which. I already know the rule;
V-9/10v+6=11(hlp)this problem is confusing.
1) "30 minutes is equivalent to 0.30 hours". This sentence is wrong. Why?2) the mass of the sun is 1,98x10^30 kg. what is the order of magnitude of this mass?a)
What is the volume of a box that has a length of 10 inches,a width of 3 inches,and a height of 7 inches!!
if I simplify (3b^3)^4 and in the end get 81b^12 how do I get there?
Why might political parties write platforms before presidential elections
Solve for s. (s + 15) ÷ 3 = 8 s = Submit
what is the quotient of 5.46 and 0.006? Please show work and (quotient means division)!!
Could someone help me solve the inequality? |x-18| > or = to 6
Four consecutive multiples of 10 have a sum of 300. What is the least of these numbers? F.20 G.30 H.40 J.50 K.60