znajdz liczbe której 6% wynosi 300
znajdz liczbę której 25% wynosi 500
prosze o obliczenia również dam naj mam to na jutroo!!!
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moze to byc tak:
6% - 300
100% - x
6x= 30000:6
x= 5000
lub
6% - 300:6
1%= 50
100% = 50*100 -= 5000
25% - 500
100% - x
25x = 50000 /:25
x= 200
25% = 5000
1% = 20
100% = 20*10 = 2000
6% ----- 300
100% ----- x
----------------
x = 300*100%/6% = 5000
Odp. 300 to 6% liczby 5000.
25% ----- 500
100 % ----- x
-------------------
x = 500*100/25% = 2000
Odp.500 to 25% liczby 2000.