which cost him five dollars and forty cents a day

Her stuff also has an electric oven I'm using his

oven for an hour and a half cost forty five

cents Chris stops oven is rated at blank kilowatts more

than his air conditioner Yeah All right Well is there

anything less fun than dealing with utility bills Don't say

taking the g e d all right so poor christoph

is getting slapped around by the power company What else

is we've all been there Fifteen cents per kilowatt hour

for electric which were told means that he pays fifteen

cents to run a one kilowatt appliance for one hour

Well running the a c cost him five dollars and

forty cents each day and using the oven cost in

forty five cents each hour and a half And we

need to know how the oven is rated compared to

the e a c Okay well let's roll up our

sleeves and be prepared to get dirty if we call

p the power rating of an appliance and see the

cost of running it for each hours than the product

P age would be the kilowatt hours used by running

an appliance rated at p for eight hours Here we've

got all that very clever people Each kilowatt hour cost

fifteen cents so we multiply ph by point one five

to get our cost or see so c equals point

one Five p h well to compare the ratings of

christoph to appliances will first need to find the rating

of the a c that's p a c and the

rating of the oven he oh separately for the a

c we're told that five dollars and forty cents or

five point four equals point one five times p a

c times twenty four number of hours in a day

So by dividing to get the rating by itself we

get p a c equals five point four divided by

point one five times twenty four for a total of

one point five kilowatts Then we could do the same

deal for the oven Point four Five equals point one

five times p o times one point five the number

of hours per stop is using it Well this gives

us a point Four five divided by point one five

times one point five for a total of two kilowatts

Phil comparing apples to apples this case kilowatt kilowatts looks

like the oven is rated at two minus one point

five floor point Five kilowatts More than the a c

and that's Our final answer Hopefully this problem helped catch 00:02:47.392 --> [endTime] you up on current events