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Mathematics 8 Online
OpenStudy (mstv1112):

HELP. Will give MEDAL :)

OpenStudy (mstv1112):

1. Which number is divisible by 5? 43 65 72 169 2. Which number is divisible by 9? 495 322 619 199 3. Find the missing number that makes 1,54__ divisible by 3. 6 9 3 2 4. List the positive factors of 36.

OpenStudy (anonymous):

what are your guesses?

OpenStudy (mstv1112):

1.B 65

OpenStudy (anonymous):

good

OpenStudy (anonymous):

and for 2 3 4

OpenStudy (mstv1112):

2. C 619 ?

OpenStudy (anonymous):

i think you should try again

OpenStudy (mstv1112):

Im not sure on 2 and 3 but #4 is 1 2 3 4 6 9 12 18 36

OpenStudy (anonymous):

good

OpenStudy (mathmate):

Numbers divisible by 9 have the sum of digits divisible by 9. For example, 5544 is divisible by 9 because 5+5+4+4=18 which is divisible by 9.

OpenStudy (anonymous):

for three try splitting up the number. if you think about it 3 goes into 1500 500 times

OpenStudy (anonymous):

what number from 40-49 is divisible by 3

OpenStudy (mstv1112):

2. 199?

OpenStudy (mstv1112):

and @pmkat14 42?

OpenStudy (anonymous):

good

OpenStudy (anonymous):

14 times, so its 500+14

OpenStudy (mstv1112):

514

OpenStudy (anonymous):

there you go, so 1542/514=3

OpenStudy (mstv1112):

Thank you, I really appreciate it!

OpenStudy (anonymous):

you got it, fan and tag me in the future when im online for more help

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