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Mathematics 21 Online
OpenStudy (phebe):

MATH HELPZZ! http://prntscr.com/7ofnoj

OpenStudy (studygurl14):

Your first step would be to factor the number 20.

OpenStudy (phebe):

ok

OpenStudy (studygurl14):

I mean, find the factors of 20. Which numbers when multiplied together, equals 20?

OpenStudy (phebe):

5*4

OpenStudy (studygurl14):

correct. so 4 and 5 are factors. What other number combinations equal 20 when multiplied?

OpenStudy (phebe):

10*2

OpenStudy (phebe):

^^

OpenStudy (studygurl14):

correct. so so far we have 2, 4, 5, and 10

OpenStudy (studygurl14):

One more set of numbers. Can you find them?

OpenStudy (phebe):

i dont know any others lol

OpenStudy (studygurl14):

Hint: a number is always divisible by itself and 1

OpenStudy (phebe):

is it 20*1

OpenStudy (studygurl14):

yes. So, what set contains the numbers 1, 2, 4, 5, 10, and 20?

OpenStudy (studygurl14):

only contains those numbers, with no others

OpenStudy (phebe):

umm... i dont know

OpenStudy (phebe):

is the Answer B?

OpenStudy (studygurl14):

no, not be. which set contains only the previously mentioned numbers?

OpenStudy (phebe):

A is the answer?

OpenStudy (studygurl14):

no. The answer would contain all those numbers and no other. The factrs of 20 are 1, 2, 4, 5, 10, and 20. So what set looks like this? {1, 2, 4, 5, 10, 20}

OpenStudy (phebe):

OOOO omg thank you soo much

OpenStudy (studygurl14):

You're welcome. :)

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