Angular velocity

[Otis]

661.06442577

Hi. When we round to the tenths place, we need to examine the next digit -- the digit in the hundredths place. We see it is 6.

Standard rounding rules tell us to round up, when the next digit is five or more. Because 6 is more than five, we round the 0 to 1.

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[rachelmaddie]

Hi. When we round to the tenths place, we need to examine the next digit -- the digit in the hundredths place. We see it is 6.

Standard rounding rules tell us to round up, when the next digit is five or more. Because 6 is more than five, we round the 0 to 1.

?

So, 666. 01442577

 

[rachelmaddie]

So, 666. 01442577

Sorry.

Hi. When we round to the tenths place, we need to examine the next digit -- the digit in the hundredths place. We see it is 6.

Standard rounding rules tell us to round up, when the next digit is five or more. Because 6 is more than five, we round the 0 to 1.

?

Sorry. It is 666. 16442577.

 

[Otis]

… It is 666. 16442577.

Please do not type spaces within your numbers.

Rounded to the nearest tenth, the correct answer is 661.1 rpm. (I'm not sure why you changed 661 to 666.)

Have you memorized the place-value names, for the first few places to the right of the decimal point? In my previous reply (post #21), I had assumed you were familiar with basic place values. Also, I'd told you the zero rounds to 1; we then delete the remaining digits (6442577).

It seems like you need to review the concept of rounding.

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