My daughter has a math problems that reads. Steve's birthday is between May 9 and May 23. The date of his birthday is not anodd number. The sum of the digits is 9. When is Steve's birthday?
His birthday must be:
10, 12, 14, 16, 18, 20, or 22
It can't be the 10th because 1 + 0 = 1
It can't be the 12th because 1 + 2 = 3
Let's see if she can figure this problem out from here.
even number? adding to nine?
well, even means the last digit is 0, 2, 4, 6, 8,
between 9th and 23, so the first digit is 1 or 2.
How can you get 1 or 2 added to one of the even digits to make 9?
ANSWER= 9 His birthday must be:
9,11, 13, 15, 17, 19, 21, or 23 SO 9
The answer is actually May 18. 18 is between 9 and 23, it is not an odd number and 1+8=9
Ansa is may 18
May 18,2017
To solve this math problem, we need to analyze the given information and consider the constraints given:
1. Steve's birthday is between May 9 and May 23.
2. The date of his birthday is not an odd number.
3. The sum of the digits is 9.
Let's break down the possible dates within the given range:
May 9 - Sum of digits is 9, but 9 is an odd number, so it does not fulfill the second condition.
May 10 - Sum of digits (1 + 0) is 1, which does not fulfill the first condition.
May 11 - Not within the given range.
May 12 - Not within the given range.
May 13 - Not within the given range.
May 14 - Not within the given range.
May 15 - Not within the given range.
May 16 - Not within the given range.
May 17 - Sum of digits (1 + 7) is 8, which does not fulfill the second condition.
May 18 - Sum of digits (1 + 8) is 9, and 18 is an even number, fulfilling all the given conditions.
Therefore, Steve's birthday is on May 18.