olivia7290 olivia7290

16-11-2020
Mathematics

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Theratiooftheredcardstoblackcardsinadeckis3:10 2 more red cards are added to the deck.
The ratio of red cards to black cards is now 1:3 Work out the number of black cards in the deck.

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keymonni56 keymonni56

16-11-2020

Cant solve this question

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