Zmieszano 500 ml 30% śmietanki z 500 ml 12% śmietanki. Ilu procentową śmietankę otrzymano?
500 ml * 30 % = 150 ml
500 ml * 12% = 60 ml
150 + 60 = 210 ml
500 + 500 = 1000 ml
1000 ml - 100 %
210 ml - x
x = 210 * 100/1000 = 21%
Odp: Otrzymano 21% śmietankę.
30% z 500ml= 150ml
12% z 500ml= 60ml
500ml+ 500ml=1000ml
150ml+ 60ml= 210ml
1000ml-100%
210ml-x%
x= 100 razy 210 /1000 = 21000/1000 = 21%
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500 ml * 30 % = 150 ml
500 ml * 12% = 60 ml
150 + 60 = 210 ml
500 + 500 = 1000 ml
1000 ml - 100 %
210 ml - x
x = 210 * 100/1000 = 21%
Odp: Otrzymano 21% śmietankę.
30% z 500ml= 150ml
12% z 500ml= 60ml
500ml+ 500ml=1000ml
150ml+ 60ml= 210ml
1000ml-100%
210ml-x%
x= 100 razy 210 /1000 = 21000/1000 = 21%