Posted by **packy** on Wednesday, January 6, 2010 at 6:43pm.

the units digit of a 2-digit number exceeds twice the tens digit by 1. find the number if the sum of its digits is 10.

Please help i am completley lost!!

- algebra -
**Damon**, Wednesday, January 6, 2010 at 6:49pm
x y

y = 2x+1

y = 10-x

so

10-x = 2x+1

3 x = 9

etc

- algebra -
**packy**, Wednesday, January 6, 2010 at 6:53pm
im still pretty confused, but i think u r suppossed to solve the 2 equations u gave and got (3,7) but i think im way off

- algebra -
**Damon**, Wednesday, January 6, 2010 at 7:23pm
Check it by using 37 in the problem statement.

the units digit (7) of a 2-digit number (37)exceeds twice the tens (2*3=6) digit by 1.(6+1=7 sure enough)) find the number if the sum of its digits is 10. (3+7=10 sure enough)

- algebra -
**Zoey**, Wednesday, January 6, 2010 at 7:29pm
thank u

## Answer This Question

## Related Questions

- algebra - the sum of the digits of a three digit number is 14. the tens digits ...
- Math - Algebra - What is the linear equation that will represent the second ...
- Maths - In A Two Digit Number, The Sum Of The Digits Is 14. Twice The Tens Digit...
- algebra - the winninq three-digit number in a drawing for a door prize had the ...
- math - This is an SAT question of the day that I can't understand. The sum of ...
- 4th grade math - Find the mystery number. It is a 4 digit odd number. All the ...
- algebra - The sum of the digits of a two digit number is 12,and the units digit ...
- math - find the mystery number, it is a 4 digit odd number, all the digits are ...
- math - This is an SAT Question of the Day. The sum of the digits of a three-...
- number problem - The units digit of a 2 digit number exceeds thrice the tens ...

More Related Questions