Maria has three children. there are two age diffrence between each child . the total ages of all three is 36 years. rosa is the
youngest how old is rosa
1 answer:
R = Rosa's age
r + 2 = next child
r + 4 = eldest child
r + (r + 2) + (r + 4) = 36
*Substitute '1' for the Rs
1r + 1r + 1r + 2 + 4 = 36
3r + 6 = 36
*Subtract '6' to both sides
3r + 6 - 6 = 36 - 6
3r = 30
*Divide '3' to both sides

r = 10
Rosa is
10 years old.
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