Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (1dfanatic):

Write in the missing digit to make this number divisible by 9. 7_1 (just type the one number missing)

OpenStudy (phi):

a number is divisible by 9 if the sum of its digits is divisible by 9

OpenStudy (anonymous):

When phi says sum of digits, it means 7+missing digit +1 =9 Since 7+1=8, the missing digit is what number?

OpenStudy (anonymous):

see divisibility rules http://www.mathsisfun.com/divisibility-rules.html

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Arriyanalol: i need help
1 day ago 7 Replies 1 Medal
Arriyanalol: CONGRATS to me
1 day ago 8 Replies 2 Medals
Legomaster346: What colleges are good that are near Arab Alabama?
1 week ago 5 Replies 0 Medals
Arriyanalol: i need help
1 week ago 6 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!