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the ratio of red marbles to blue marbles in a bag is 4:7. There are 16 red marbles.How many blue marbles are there? solve for indicated variable.
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Jul 12, 2015
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the ratio of red marbles to blue marbles in a bag is 4:7. There are 16 red marbles.How many blue marbles are there? solve for indicated variable.
Mathematics
high-school
Deepak Joshi
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Deepak Joshi
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4x - number of red marbles
7x - number of blue marbles
Danf
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Jul 12, 2015
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Danf
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red marbles : blue marbles = 4:7
16 - red marbles
x - blue marbles
There are 28 blue marbles.
Mark Fisher
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Jul 16, 2015
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