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Jane, Andrea, and Maria pick apples. Andrea pics three times as many pounds as Maria. Jane picks two times as many pounds as Andre. The total weight of the apples is 840 pounds. How many pounds of apples does Andre pic?

Respuesta :

Let x=apples that Andre picks
Then x/3=apples that Maria picks
And 2x=apples that Jane picks 
So, 
x +(x/3)+2x=840 multiply each term by 3