If electricity costs 5 cents per kilowatt-hour, how much does it cost to run an 80-watt light bulb for 24 hours? 96.0 cents 4.2 cents 5.6 cents 9.6 cents description

We are given the electricity cost as 5 cents per kilowatt-hour. We should notice that the cost is actually in the form of:

electrical cost = cost / (power * time)

Therefore to get a number which is in terms of cents alone (cost alone), therefore we should multiply the given electrical cost value with the power and time.

Power = 80 watt = 0.08 kilowatt

Time = 24 hours

Therefore the cost is calculated as:

cost = electrical cost * power * time

cost = [5 cents / (kilowatt hour)] (0.08 kilowatt) (24 hour)

cost = 9.6 cents

9.6 cents

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x