👤

Dau coroana!!Ex 11 si 12

Dau CoroanaEx 11 Si 12 class=

Răspuns :

11. (p/100)*340=17
p/100=17/340
340p=1700
p=1700/340=50
12.
a) 360xp/100=90
p=(90x100)/360
p=25%

b) 400xp/100=1000
p=(100x1000)/400
p=250%

c)2800xp/100=308
p=(100x308)/2800
p=11%

d)80xp/100=20
p=(100x20)/80
p=25%
10) 340:17 =20 p = 20