Numbers that add up to 11:
29, 38, 47, 56, 65, 74, 83, 92
the number of photos taken is a two-digit number. the sum of the number is 11. The tens digit is 3 more than the ones digit. How many photos were taken
3 answers
tens digit + ones digit = 11
tens digit = 3 + ones digit
t + x = 11
t = 3 + x
substitute: 3 + x + x =11
3 + 2x = 11
Solve for x which represents the one's digit. Then find the tens digit.
tens digit = 3 + ones digit
t + x = 11
t = 3 + x
substitute: 3 + x + x =11
3 + 2x = 11
Solve for x which represents the one's digit. Then find the tens digit.
47