SOLUTION: Miriam is four years older than Ricardo. Ten yeras ago Miriam was 3 times as old as Ricardo was then. A. How old are they now? B. Determine whether your answer is correect by

Algebra ->  Human-and-algebraic-language -> SOLUTION: Miriam is four years older than Ricardo. Ten yeras ago Miriam was 3 times as old as Ricardo was then. A. How old are they now? B. Determine whether your answer is correect by       Log On


   

Question 325400: Miriam is four years older than Ricardo. Ten yeras ago Miriam was 3 times as old as Ricardo was then.
A. How old are they now?
B. Determine whether your answer is correect by checking that it satisfies the conditions of the problem.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
R=X
M=X+4
(X+4)-10=3(X-10)
X+4-10=3X-30
X-6=3X-30
X-3X=-30+6
-2X=-24
X=-24/-2
X=12 AGE OF RICARDO NOW.
12=4=16 AGE OF MIRIAM NOW.
PROOF:
16-10=3(12-10)
6=3*2
6=6