Seudónimo Seudónimo

26-01-2017
Mathematics

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Pamela age is two times Jiri age. the sum of their ages is 87 what is Jiri age

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Thezone35 Thezone35

26-01-2017

pamela is 43 years old

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apologiabiology apologiabiology

26-01-2017

p=pamela's age
j=jiri's age

p is 2 times j
p=2j

sum is 87
p+j=87
sub 2j for p since p=2j

2j+j=87
3j+87
divide both sides by 3
j=29

jiri is 29

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