Răspuns :
1)75.784ha:13=5829.53ha
2)p+s=5 (le adunam)
s+c=7 =>2p+2s+2c=18 | :2 => p+s+c=9 ] =>c=9-5=4lei
p+c=6 p+s+c=9 p+s=5 ]
------------- =>p+s+c=9] =>C=9-7=2lei
s+c=7 ]
=>p+s+c=9 =>s=9-6=3lei
p+c=6
3)15.5kg...........55.18lei =>x=2.3*55.18 supra 15.5kg
2.3kg..............x
4.L=3l
P=105.2cm
---------------
P=2L+2l=2*3l+2l=8l =>8l=105.2=>l=13.15cm
L=3l=39.45cm
2)p+s=5 (le adunam)
s+c=7 =>2p+2s+2c=18 | :2 => p+s+c=9 ] =>c=9-5=4lei
p+c=6 p+s+c=9 p+s=5 ]
------------- =>p+s+c=9] =>C=9-7=2lei
s+c=7 ]
=>p+s+c=9 =>s=9-6=3lei
p+c=6
3)15.5kg...........55.18lei =>x=2.3*55.18 supra 15.5kg
2.3kg..............x
4.L=3l
P=105.2cm
---------------
P=2L+2l=2*3l+2l=8l =>8l=105.2=>l=13.15cm
L=3l=39.45cm
1)
75784 / 13 = 5829,54 ha are in subordine fiecare ranger. (am rotunjit la sutimi)
2)
p + s = 5
s + c = 7
p + c = 6
-------
p = 5 - s Substitutie
-------
s + c = 7
5 - s + c = 6
-------
s + c = 7
-s + c = 1
----------------------Adunam ecuatiile
/ 2c = 8
c = 8/2
c = 4 lei este pretul unui caiet
--------
s = 7 - c = 7 - 4
s = 3 lei este pretul unui stilou
------
p = 5 - s = 5 - 3
p = 2 lei este pretul unui pix
3)
15,5 Kg -----------------------------55,18 lei
2,3 Kg ----------------------------- x lei
x = (2,3 * 55,18) / 15,5 = 126,914 / 15,5 = 8,188
4)
105,2 / 8 = 13,225 cm
=> l = 13,225 cm
=> L = 3 * 13,225 = 39,675 cm
75784 / 13 = 5829,54 ha are in subordine fiecare ranger. (am rotunjit la sutimi)
2)
p + s = 5
s + c = 7
p + c = 6
-------
p = 5 - s Substitutie
-------
s + c = 7
5 - s + c = 6
-------
s + c = 7
-s + c = 1
----------------------Adunam ecuatiile
/ 2c = 8
c = 8/2
c = 4 lei este pretul unui caiet
--------
s = 7 - c = 7 - 4
s = 3 lei este pretul unui stilou
------
p = 5 - s = 5 - 3
p = 2 lei este pretul unui pix
3)
15,5 Kg -----------------------------55,18 lei
2,3 Kg ----------------------------- x lei
x = (2,3 * 55,18) / 15,5 = 126,914 / 15,5 = 8,188
4)
105,2 / 8 = 13,225 cm
=> l = 13,225 cm
=> L = 3 * 13,225 = 39,675 cm