Find their present ages
2007-09-18 08:39:04 · 6 answers · asked by thealphadude1992 2 in Science & Mathematics ➔ Mathematics
Let carla age=x yrs
so Mala age=2x yrs
also (2x-3)=3(x-3)
or 2x-3=3x-9
or 2x-3x=-9+3
or -x=-6 or x=6
so carla age is 6 yrs & Marla age is 12 yrs ans
2007-09-18 08:45:02 · answer #1 · answered by MAHAANIM07 4 · 0⤊ 0⤋
Marla is 12, Cara is 6
2007-09-18 15:46:04 · answer #2 · answered by ~RedBird~ 7 · 0⤊ 0⤋
Then Marla is 6 years old and Cara is 3 years old.
2007-09-18 16:55:56 · answer #3 · answered by Anonymous · 0⤊ 0⤋
M = age of marla
C = age of Cara
marla is twice as old as Cara
M = 2C
three years ago, Marla's age is M - 3 and Cara's age is C - 3
M - 3 = 3(C - 3)
2C - 3 = 3C - 9
-3 = C - 9
C = 6
Cara: 6
Marla: 12
2007-09-18 15:47:44 · answer #4 · answered by 7 · 0⤊ 0⤋
Let, marla's age be x, and cara's age be y,
x = 2y
(x - 3) = 3(y - 3)
(2y - 3) = 3y - 9
y = 6
x = 2y
x = 12
Marla --> 12
Cara ---> 6
2007-09-18 15:43:42 · answer #5 · answered by Anonymous · 1⤊ 0⤋
Start by setting up your two equations:
M = 2C
M - 3 = 3(C - 3)
Now substitute the value for M into the second equation and solve for C.
Lastly, substitute the value you found for C into the first equation to solve for M.
2007-09-18 15:45:51 · answer #6 · answered by john 2 · 0⤊ 0⤋