SOLUTION: Maria has three childrem. There is two years age difference between each child. The total ages of all three children is 36 years. Rosa is the youngest child. How old is Rosa?
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Question 583033: Maria has three childrem. There is two years age difference between each child. The total ages of all three children is 36 years. Rosa is the youngest child. How old is Rosa? Answer by JBarnum(2146) (Show Source):
You can put this solution on YOUR website! R means Rosa
given:
R+b+c=36
R
R
c-2=b, (R+2)+2=c
b-2=R, R+2=b
.
R+b+c=36 substitute for b and c
R+(R+2)+((R+2)+2)=36 add like terms
3R+6=36 subtract 6
3R=30 divide by 3
R=10
.
check
R=10
b=12
c=14
10+12+14=36
36=36
