Question

HELP ME PLEASE.
Commonwealth Edison Company supplies electricity to residential customers for a monthly customer charge of $7.58 plus 8.295 cents per kilowatt-hour for up to 400 kilowatt-hours. (Hints: Pay attention to the units.)
a.Write an equation that relates the monthly charge C, in dollars, to the number x of kilowatt-hours used in a month, 0≤x≤400.
b.What is the monthly charge for using 150 kilowatt-hours?

Answer 1

a.) 7.58 + 8.295(k < 400) = C (I am not sure about this one)
b.) 7.58 + 8.295(150) = total cost
can you finish this one now ?

Answer 2

oh ok..thanks for your attempt .@texaschic101

Answer 3

can you finish the 2nd one or do you need help ?

Answer 4

i would only need to multiply 8.295 * 150 and 7.58

Answer 5

add all through and dat would be my answer

Answer 6

hold on....the 8.295 is in cents...
it might be .08295(150) = 12.44 + 7.58 = 20.02

Answer 7

@amistre64 ...can you check this please

Answer 8

oh ok..i think you right now.was jux about to ask you if i dont need to convert the cents into dollars

Answer 9

@texaschic101 should i write out the equation as
7.58 + 0.08295x

Answer 10

well...I know if you just write it out like this : 7.58 + 8.295(150) will give you the wrong answer because it looks like the 8.295 is dollars and not cents.
.08295......is definitely cents.....but you might want to get a second opinion.

Answer 11

OH OK..THANKS VERY MUCH..MUCH APPRECIATED