Question

Cite procente reprezinta
4pe9 din 2pe3
25 din 40
1intreg si o treime din 2 intreg si o noime
macar pe primul rezolvatil va rog frumos este urgent
ajutatima ...

Answer 1

$\dfrac49=\dfrac{x}{100}\cdot\dfrac23\Rightarrow \dfrac{x}{100}=\dfrac49\cdot\dfrac32\Rightarrow x=\dfrac{200}{3}=66,(6)$$25=\dfrac{x}{100}\cdot40\Rightarrow x=\dfrac{250}{4}=62,5$

Answer 2

a) $\frac{p}{100}* \frac{2}{3}= \frac{4}{9}=>p= \frac{4}{9}* \frac{3}{2}*100= \frac{200}{3} =66,(6)$%

b) $\frac{p}{100}*40=25=>p= \frac{25*100}{40}= 62,5$%

c)$\frac{p}{100} *2 \frac{1}{9}=1 \frac{1}{3}<=> \\ <=> \frac{p}{100}* \frac{19}{9}= \frac{4}{3}=>p= \frac{4}{3}* \frac{9}{19}*100= 0,63$%.