Question

Va rog autatima cu acest exercitiu.Numerele a,b,c sunt direct proportionale cu nr-le 6,12,24.Cu cat la sutadin a+c repeezinta b?Cat la suta reprezinta a din c?

Answer 1

a/6=b/12=c/24
b/12=a+c/30
b=(a+c). 12/30=(a+c). 2/5=(a+c) . 40/100=40% din(a+c)

a/6=c/24
a=6c/24=c/4=25c/100=25% dinc