A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
rosa is 3 years older than her brother marco. let "x" stands for rosa's age and let "y" stands for marco's age . the linear equation of y= x 3 statse marcos age , y , in terms of rosas age , x .
a.when marco is 38, write the equation for rosa's age.
b.when marco is 72, write the equation for rosas age
i need help!
anonymous
 3 years ago
rosa is 3 years older than her brother marco. let "x" stands for rosa's age and let "y" stands for marco's age . the linear equation of y= x 3 statse marcos age , y , in terms of rosas age , x . a.when marco is 38, write the equation for rosa's age. b.when marco is 72, write the equation for rosas age i need help!

This Question is Closed

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0the original equation: y=x3 If y is marco's age and that is 38 38=x3, then just solve for x Again, if y is marco's age and that is 72 72=x3, just solve for x

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0plug in marco's age for the y, and solve.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0can someone solve it for me TTTT

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0What you want is Rosa's age. The problem says x is Rosa's age. What you need to do is leave the x along on one side of the equation. From: 38=x3 Since you have negative 3 along with the x, just add +3 to eliminate it (because 3+3=0) BUT, in order for the equation to remain valid, add +3 to the other side of the equation too. So: 38+3=x3+3 And you have: 41=x And solve the other one in the same way.
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.