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3 years ago

Age of Peter + age of Pol = 39

Mathematics

2 answers:

GalinKa [24]3 years ago

6 0

Answer:

PETER 18

POL 21

MARY 26

Step-by-step explanation:

I dont know if I did in the right way...

1st: Take any number for peter's or pol's age

I took 18 for peter, RANDOMLY

2nd: Subtract the age from the total to get pol's age

39-18=21 Hence, pols age is 21

3rd: Subtract peter's age from the total to get marys age

47-18=26 Hence, Marys age is 26

4th: Add the age of pol and mary

aaand, you get 47

Done!

Hope it helps!!!

Lemur [1.5K]3 years ago

5 0

Answer:

Peter is 18, Pol is 21 and Mary is 26 years old.

Step-by-step explanation:

Pe + Po = 39 .......A

Pe + M = 44 .......B

Po + M = 47 ........C

Equation B - Equation C gives:

Pe - Po + M - M = 44 - 47

Pe - Po = -3

Add this equation to A:

2Pe + Po - Po = 39 - 3

2Pe = 36

Pe = 18.

Substituting for Pe in B

18 + M = 44

M = 44 - 18 = 26.

Substituting for M in C:

Po + 26 = 47

Po = 47 - 26 = 21.

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