已知a/e=b/f=c/g=5/3(e+f+g不等于0),则(a+b+c)/(e+f+g)=?
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已知a/e=b/f=c/g=5/3(e+f+g不等于0),则(a+b+c)/(e+f+g)=?
已知a/e=b/f=c/g=5/3(e+f+g不等于0),则(a+b+c)/(e+f+g)=?
已知a/e=b/f=c/g=5/3(e+f+g不等于0),则(a+b+c)/(e+f+g)=?
因为a/e=b/f=c/g=5/3
所以a=5e/3,b=5f/3,c=5g/3
所以
(a+b+c)/(e+f+g)
=(5e/3+5f/3+5g/3)/(e+f+g)
=5/3(e+f+g)/(e+f+g)
=5/3