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108 cm----xkg
x=108*3: 8= 40,5 kg
100g-----3,8g
340 g ----y
y= 340*3,8:100= 12,92g
8cm - 3kg
108cm -x
x=108*3/8=40,5kg
Zadanie 2.
100g - 3,8g
340g - x
x=340*3,8/100=12,92g
8 - 3
108 - x
x = 108 * 3 : 8
x = 324 : 8
x = 40,5kg
Odp. Waży 40,5 kg
2.
100 - 3,8
340 - x
x = 340 * 3,8 : 100
x = 1292 : 100
x = 12,92
Odp. Jest 12,93g jogurtu.