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Mathematics 24 Online
OpenStudy (anonymous):

Write each fraction as a decimal. State whether the decimal is terminating or repeating. If the decimal repeats, state the block of digits that repeats -1/6

OpenStudy (anonymous):

|dw:1417875926124:dw|

OpenStudy (k_lynn):

well to change the fraction to a decimal, you need to divide \[1\div6\] what does that give you?

OpenStudy (anonymous):

0.16667

OpenStudy (k_lynn):

yes. Since it was a negative fraction, we have to add the negative to the decimal. So -0.16667. Is that decimal repeating itself, or does it stop?

OpenStudy (anonymous):

repeating

OpenStudy (k_lynn):

I don't think its repeating because look at the last number. Is there a line on the top of it? With the line on top, that would mean a repeating 7.

OpenStudy (anonymous):

so no it not repeating

OpenStudy (anonymous):

oh it is definitely repeating

OpenStudy (k_lynn):

it is? can you explain?

OpenStudy (anonymous):

your calculator may say -0.166667 but that is because it is rounding it is really \(-.1666666....\)

OpenStudy (k_lynn):

Oh, ok. I think I'll let you take over.

OpenStudy (anonymous):

you will get a repeating decimal any time the denominator has a factor other than 2 or 5 6 has a factor of 3

OpenStudy (anonymous):

if you divide by hand you will see it as for the block of digits that repeat, in this case it is just 1 long, repeated 6's

OpenStudy (anonymous):

so whats my anwser

OpenStudy (k_lynn):

based on the info satellite gave you, what do you think your answer is?

OpenStudy (anonymous):

repeats

OpenStudy (k_lynn):

Ya, great job!

OpenStudy (anonymous):

thanks

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