SOLUTION: The problem is:
Write an equation which models how old, in years, you will be when you are 3 times as old as the younger person.
I am 30
My cousin is 12
Please explain reas
Algebra.Com
Question 193756: The problem is:
Write an equation which models how old, in years, you will be when you are 3 times as old as the younger person.
I am 30
My cousin is 12
Please explain reasoning
Found 2 solutions by stanbon, RAY100:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Write an equation which models how old, in years, you will be when you are 3 times as old as the younger person.
NOW DATA
I am 30
My cousin is 12
----------------------------
x years from not DATA
I will be 30 + x
My cousin will be 12 + x
-----------------------------
Equation:
30+x = 3(12+x)
30 + x = 36 + 3x
2x = -6
x = -3
-----------------
Answer:
When I was 30-3 = 27
My cousin was 12-3 = 9
At that time I was 3 times my cousin's age.
==================================================
Cheers,
Stan H.
Answer by RAY100(1637) (Show Source): You can put this solution on YOUR website!
older =30,,,younger = 12 ,,,,given
,
(30+x) = 3(12+x)
30 +x = 36 +3x
-2x = 6
x = (-3)
or 30-3=27
12-3=9
,
ratio is correct = 3
RELATED QUESTIONS
I need an equation which models how old in years you will be when you are 3 times as old... (answered by rwm)
Write an equation which models how old, in years, you will be when you are 3 times as old (answered by drk,Stitch)
I need an equation which models how old, in years, you will be when you are 3 times as... (answered by ankor@dixie-net.com)
I am 37 and alex is 15.
write an equation which models how old in years you will be... (answered by ankor@dixie-net.com)
One person is 3 years old. Another is 57 years old. I need to write an equation which... (answered by josmiceli)
Write an equation which models how old, in years, you will be when you are 3 times as old (answered by Fombitz)
Write an equation which models how old in years each of you will be when you are 3 times... (answered by georgiahammond)
7. At some point during the lives of you and the youngest person, your age will be three (answered by ptaylor)
Write an equation which models how old, in years, you will be when you are 3 times as... (answered by nyc_function)