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08-02-2017
Mathematics

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Julie is x years old
David is 3 years older than Julie
Omar is twice as old as David

Write an expression for the sum of Julie, David and Omar's ages

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apologiabiology apologiabiology

08-02-2017

j=x
d=3+x
o=2d, o=2(3+x)=6+2x

j+d+o=x+3+x+6+2x=4x+9

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juliemadonna1011 juliemadonna1011

08-02-2017

x+x+3+2(x+3)

Julie is x

David is x+3

Omar is 2(x+3)

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