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Mathematics, 01.12.2020 21:30 lolah5127
In a jar of marbles, the ratio of green marbles to black marbles is 3:5. If the jar contains 21 green marbles, how many black marbles are in the jar?
green 3 21
black 5 ?
Your
10
12
30
35
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Answers: 3
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In a jar of marbles, the ratio of green marbles to black marbles is 3:5. If the jar contains 21 gree...
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