Asked by Rina

Find the cost of 999 kw-hr at 7.3 cents per kw-hr.
Answered by DrBob222
999 kw-hr x 0.073/kw-hr = ?
Answered by Rina
72.927 kw-hr. Am I right DrBob222? but do I have to round off 72.927 to the nearest cents?
Answered by DrBob222
Yes. It rounds to $72.93.
Answered by Rina
yes, that is right! Because I kept rereading my math book and i found out it says to round off to the nearest ten cents. Thank You DrBob222!
Answered by DrBob222
If you are to round to the nearest 10 cents, then I would round to $72.90.
Answered by Rina
Nevermind, because 9 8s bigger than 3 of course so it round down to 90 cents.
Answered by Steve
No, it rounds down to 90 cents because 3 is less than 5. 93 is closer to 90 than to 100.
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