Question 717353: it says write the missing digit to make each number divisible by 9 what do i do
88,blank,12
what do i do Found 2 solutions by jsmallt9, MathLover1:Answer by jsmallt9(3758) (Show Source):
You can put this solution on YOUR website! A number is divisible by 9 if the sum of the digits is divisible by 9. If we call the missing digit "n" then the sum of the digits, 8+8+n+1+2, must add up to a number which is divisible by 9.
Simplifying 8+8+n+1+2 we get 19+n. "n" must be a valid digit, 0 through 9. Which one must it be if 19+n has to be divisible by 9? There's only one possible answer. I'll leave it up to you to finish. Just try different digits for "n" until 19+n is divisible by 9.