4/5+(6/5*5/12-4/5)=4/5+(1/2-4/5)=4/5+1/2-4/5=1/2
8% ------ 0,5
100% ---- x
8x=50 /:8
x=6,25
to jest 8%...teraz z proporcji:
8%- 0,5
100%- x
x= (100•0,5):8= 50:8= 6,25
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4/5+(6/5*5/12-4/5)=4/5+(1/2-4/5)=4/5+1/2-4/5=1/2
8% ------ 0,5
100% ---- x
8x=50 /:8
x=6,25
0.5=0.08x
x=6.25
to jest 8%...teraz z proporcji:
8%- 0,5
100%- x
x= (100•0,5):8= 50:8= 6,25