A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
The sum of the digits of a twodigit number is 12. If the units digit is 3 times the tens digit, find the number.
anonymous
 3 years ago
The sum of the digits of a twodigit number is 12. If the units digit is 3 times the tens digit, find the number.

This Question is Closed

hoblos
 3 years ago
Best ResponseYou've already chosen the best response.2let a be the units digit and b be the tens digit the number = 10b +a to find a and b we must solve the system a+b =12 a= 3b can you solve it ??

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I'm not understanding

hoblos
 3 years ago
Best ResponseYou've already chosen the best response.2you dont understand the part that the two digit number = 10b + a ??

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I don't understand how we start at 10b+a and then we go to a+b=12

hoblos
 3 years ago
Best ResponseYou've already chosen the best response.2no! these two parts are not related directly.. 10a+b is the general form of any two digits number but a+b =12 is concluded from the given ( The sum of the digits of a twodigit number is 12)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1344293939890:dw

hoblos
 3 years ago
Best ResponseYou've already chosen the best response.2b=3 is correct but then you must replace (b=3) in the equation a+b=12 to get a and then add 10b +a

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0therefore my answer is 39
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.