zoebtharpe
17.10.2019 •
Mathematics
Card in a pack are black and red in a ratio black: red=2: 5 what fraction of the cards are red a)7/10 b)2/5 c)5/7 d)2/7
me to why is 5/7?
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Ответ:
c. 5 / 7
Step-by-step explanation:
Ratio of Black to Red of 2 : 5 means in a total of 7 cards, you will get 2 Black and 5 Red cards.
So, fraction of Red cards will be total number of possible Red cards divided by total number of all cards
1.e 5 / 7
Ответ:
NLE
Step-by-step explanation:
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