Żółwica Hela zniosla 350 jaj . Wyklulo się 250 . Jaki to procent?
250/350* 100%=5/7*100%=500/7%=71 1/7%
350--100%
250--x
x=100*250 : 350 =71,4%
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250/350* 100%=5/7*100%=500/7%=71 1/7%
350--100%
250--x
x=100*250 : 350 =71,4%