Ile gramów roztworu 10%i 4% należy zmieszać, aby otrzymać 600 gramów 8% roztworu?
10% + 4% = 8% x + 600-x = 60010/100x + 4/100(600-x)=8/100×600
1/10x + 2/50(600-x)=48
0,1x + 24 - 0,04x=48
0,06x= 48-240,06x=24x=400g
600-x=600-400=200g
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10% + 4% = 8%
x + 600-x = 600
10/100x + 4/100(600-x)=8/100×600
1/10x + 2/50(600-x)=48
0,1x + 24 - 0,04x=48
0,06x= 48-24
0,06x=24
x=400g
600-x=600-400=200g