x= buraki
5x= ziemniaki
x + 120= kapusty
ziemniaki: 5x = 5*240=1200 kg buraki: x = 240 kg. kapusta: x+120 = 240+120=360 kg. razem 1800 kg. 7x=1800-120 7x=1680 |: 7 x= 240 kg. sprawdzenie 1200+360+240=1800kg.
Odp.: Zebrano 1200kg ziemniaków, 240 kg buraków i 360 kg kapusty.
licze na naj ;)
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x= buraki
5x= ziemniaki
x + 120= kapusty
ziemniaki: 5x = 5*240=1200 kg
buraki: x = 240 kg.
kapusta: x+120 = 240+120=360 kg.
razem 1800 kg.
7x=1800-120
7x=1680 |: 7
x= 240 kg.
sprawdzenie 1200+360+240=1800kg.
Odp.: Zebrano 1200kg ziemniaków, 240 kg buraków i 360 kg kapusty.
licze na naj ;)