There are a total of 12 red and blue crystals on a scale. each red crystal
weighs 5 ounces and...
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Mathematics, 23.10.2019 21:00 kidus24
There are a total of 12 red and blue crystals on a scale. each red crystal
weighs 5 ounces and each blue crystal weighs 7 ounces. the total weight
of all the crystals is 66 ounces. how many of the red crystals are there?
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Answers: 2
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