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5 respostas

Um tijolo = x

x = 1 + x/2
x - x/2 = 1
2x/2 - x/2 = 1
x/2 = 1
x = 2

Um tijolo e meio = y

y = x + x/2
y = 2 + 2/2
y = 2 + 1
y = 3

Logo, um tijolo e meio pesam 3kg

2006-07-19 23:26:52 · answer #1 · answered by angels_carolzinha 6 · 7 0

eu quero saber TB!!

2006-07-20 02:54:39 · answer #2 · answered by FERLUPA 2 · 0 0

Um tijolo e meio pesa 3 quilos.

2006-07-20 02:42:48 · answer #3 · answered by Ivan Vero 5 · 0 0

2,25kg??

2006-07-20 02:42:18 · answer #4 · answered by Nani 4 · 0 0

1Tijolo = 1Kg + 0,5 Tij.
0,5 Tij. = 1Kg
1,5 Tij. = 3 KG

2006-07-20 02:39:46 · answer #5 · answered by Robert R 2 · 0 0

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