SOLUTION: The sum of the digit of a certain two digit number is 7. Reversing its digits increases the number by 9. What is the number?
Algebra.Com
Question 1003111: The sum of the digit of a certain two digit number is 7. Reversing its digits increases the number by 9. What is the number?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The difference when reversing the digits of any two digit number is always a multiple of 9. So the difference is a number of the form 9x and x is the difference between the two digits. So you need to find two single digit numbers that have a sum of 7 and a difference of 1, and then your number will be formed by the smaller of these two numbers followed by the larger.
John
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
The sum of the digit of a certain two-digit number is 7 Reversing its digits increases... (answered by josgarithmetic)
The Sum of the digits of a certain two-digit number is 7. Reversing its digits increases... (answered by ilana)
The sum of the digits of a certain two-digit number is 7. Reversing its digits increases... (answered by Edwin McCravy)
The sum of the digits of a certain two-digit number is 7. Reversing its digits increases... (answered by edjones)
The sum of the digits of a certain two-digit number is 7. Reversing its digits increases... (answered by josgarithmetic)
The sum of the digits of a certain two-digit number is 7. Reversing its digits increases (answered by ewatrrr,lar)
the sum of the digits of a certain two-digit number is 7 reversing the digits increases... (answered by lwsshak3)
The sum of the digits of a certain two digit number is 7. Reversing it's digits increases (answered by TimothyLamb)
The sum of the digits of a certain two-digit number is 7. Reversing it's digits increases (answered by genius man,adamhen894)