@whpalmer4 Umm i got 0
use the calculator to do this. Or there is not permited to use it? your answer is not correct if the sing between the ( ) is multiplication
okay, if we round to the nearest whole unit, what are the rounded off values of 4.18, 1.93 and 8.72?
"nearest whole unit" means "nearest counting number"
"unit" <--> "1" in this context
Okay....let me think. Btw this is my worst topic ever
Have no fear, I'm here :-)
Okay :3 well........
4.18 - is that closer to 4, or 5?
very good. if we use my method from previous problem, we are rounding to the 1's place, so we add 0.5 4.18 +0.5 ----- 4.68 drop everything after the place where we are rounding 4 our first number is (4) how about the next two?
this not the place for this
like u said;
There....now where were we?
Okay, so we had "simplified" our expression from \[(4.18)(1.93)(8.72)\] to \[(4)(1.93)(8.72)\] but we still need to round the second two numbers before multiplying to get our estimate
what is the nearest counting number to 1.93?
as an old math teacher of mine used to say when someone answered without conviction in their voice, "is that an answer, or a prayer?" :-)
Lol X'D 2
that's better! How about the third one?
correctamundo. so now we have which 3 numbers to multiply together?
excellent! if we'd done the problem as originally stated, we would have 70.347728 so our estimate is pretty good, and a lot less work!
Thank you (:
you're welcome, of course
So it would be 70.347728 or do with take off some numbers?
No, the answer is 72. I'm just telling you what we would have gotten if we hadn't done an estimate, but instead multiplied the 3 original numbers in all of their magnificence :-)