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Furkat [3]
3 years ago
8

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
Mathematics
1 answer:
shtirl [24]3 years ago
8 0
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

\frac{3r}{3} = \frac{30}{3}

r = 10

Rosa is 10 years old.
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