Friday

November 28, 2014

November 28, 2014

Posted by **andrew** on Wednesday, February 20, 2013 at 7:29pm.

- math -
**Ms. Sue**, Wednesday, February 20, 2013 at 7:31pm49, 58, 67, 76, 85, or 94

- math -
**JJ**, Wednesday, February 20, 2013 at 8:12pmLet t = ten's digit

Let x = one's digit

t + x = 13

2t= x-1 or 2t+1 = x

You can substitue for "x"

t + 2t + 1 = 13

3t = 12

t = 4 find x = 9

so we have 49

**Answer this Question**

**Related Questions**

Math - i am a four digit number. all of my digits are different. my first digit ...

Math - A number has 4 digits. The sum of the first and last digit is twice the ...

math - this code has five digit 1,2,3,4,5. the first digit plus the second digit...

math - The number uses every number 0-9 the numbers are used only once the ...

Math - A number has four digits. the sum of the first and last digits is twice ...

maths - Find the sum of all 3-digit positive numbers N that satisfy the ...

math - Who am I? I am a 4-digit number wih no two digits the same. My ones ...

4th grade math - Find the mystery number. It is a 4 digit odd number. All the ...

MATH - What is my number if the hundreds digit is less than the tens digit and ...

math - find the mystery number, it is a 4 digit odd number, all the digits are ...