A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
A girl is currently 5yrs older than her younger brother and three yrs younger then her older brother. Two yrs from the current time, the product of the brothers ages will be tweleve times the age of the girl. What is the current age of the older brother?
anonymous
 4 years ago
A girl is currently 5yrs older than her younger brother and three yrs younger then her older brother. Two yrs from the current time, the product of the brothers ages will be tweleve times the age of the girl. What is the current age of the older brother?

This Question is Closed

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1x=girl's age x5 = age of younger brother x+3= age of older brother IN TWO YEARS: x+2 = girl's age x5+2=x3 = age of younger brother x+3+2=x+5 = age of older brother (x3)(x+5)=12(x+2)

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1x^2+2x15=12x+24 x^210x39=0 (x13)(x+3)=0 x=13 or 3 Reject 3 as the girl's age is not negative So the girl is 13, her younger brother is 8 and her older brother is 16
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.