Răspuns :
10% din x= 28
[tex] \frac{10}{100} [/tex] * x=28
x= [tex] \frac{28}{1} [/tex] * [tex] \frac{100}{10} [/tex]= [tex] \frac{2800}{10} [/tex]=280
p% din 120=36
[tex] \frac{p}{100} [/tex] * 120= 36
[tex] \frac{p}{100} [/tex]= [tex] \frac{36}{120} [/tex]
p= [tex] \frac{100*36}{120} [/tex]
p=[tex] \frac{360}{12} [/tex]
p=30
[tex] \frac{10}{100} [/tex] * x=28
x= [tex] \frac{28}{1} [/tex] * [tex] \frac{100}{10} [/tex]= [tex] \frac{2800}{10} [/tex]=280
p% din 120=36
[tex] \frac{p}{100} [/tex] * 120= 36
[tex] \frac{p}{100} [/tex]= [tex] \frac{36}{120} [/tex]
p= [tex] \frac{100*36}{120} [/tex]
p=[tex] \frac{360}{12} [/tex]
p=30
10% din 28 =
10/100*x=28
x/10=28
x=28*10
x=280
================
p% din 120=36
120p/100=36
p=36*120:100
p=3600:100
p=30 %
10/100*x=28
x/10=28
x=28*10
x=280
================
p% din 120=36
120p/100=36
p=36*120:100
p=3600:100
p=30 %