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ericbuenof
@ericbuenof
August 2022
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me ajudem nessa questão off. obrigado
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gig12
X= total de livros
2/5 •x + 3/8 •x + 1350 = x | mmc = 40
16/40 + 15/40 + 54000
16x + 15x + 54000 = 40x
40x-31x = 54000
9x = 54000
x = 54000/9 = 6000
6000 livros
----------------------------------------------------------------
2/5 são do ensino fundamental = 2400
3/8 são do ensino médio= 2250
Ensino superior = 1350
2400+2250+1350=6000
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Lista de comentários
2/5 •x + 3/8 •x + 1350 = x | mmc = 40
16/40 + 15/40 + 54000
16x + 15x + 54000 = 40x
40x-31x = 54000
9x = 54000
x = 54000/9 = 6000
6000 livros
----------------------------------------------------------------
2/5 são do ensino fundamental = 2400
3/8 são do ensino médio= 2250
Ensino superior = 1350
2400+2250+1350=6000