m(ppa)=120+160=280г
m(раст)=120×0,14+160×0,4=80,8г
w(раст)=80,8:280=0,2885=28,85%
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m(ppa)=120+160=280г
m(раст)=120×0,14+160×0,4=80,8г
w(раст)=80,8:280=0,2885=28,85%