Question

imparte 40 de hectare in 2 parti invers proportionale cu numerele 0.75 si 0.5
va rog

Answer 1

i.p - invers proportional cu ...

0.75 = $\frac{75}{100}$=$\frac{3}{4}$

0.5 = $\frac{5}{10}$ = $\frac{1}{2}$

{x,y}  i.p  {$\frac{3}{4}$ ; $\frac{1}{2}$}

$\frac{3x}{4}$ = $\frac{y}{2}$ = k

x = $\frac{4k}{3}$

y= 2k

$\frac{4k}{3}$ + 2k=  40  / ×3

4k + 6k = 120

10k = 120

k= 12

x= $\frac{3 x 12}{4}$

x= 16

y = 2 x 12

y = 24

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