8.7778
9 + 99/9 = 9 + 11 = 20
9^9^9 nine to the ninth to the ninth
Yes. 1 followed by 9 0's or 9 zeros. (1,000,000,000)
6210001000
Try to find a number that ends with 2 (since only 1's and 2's are allowed - to be even), and where the sum of the digits is 9.
I think it means that you drink
s + 9
CIA
A Social Security Number has 9 Digits
All 9's.
7.
9 + 99/9 = 9 + 11 = 20
9^9^9 nine to the ninth to the ninth
Yes. 1 followed by 9 0's or 9 zeros. (1,000,000,000)
6210001000
Try to find a number that ends with 2 (since only 1's and 2's are allowed - to be even), and where the sum of the digits is 9.
Call the smaller number s and the larger number l. Then s + l = 22 and l - s = 4. From the second of these equations, l = s + 4. Substituting this value into the first equation yields s + s + 4 = 22, or 2s = 18, or s = 9. The larger number is 9 + 4 = 13.