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30 September, 16:37

The ratio of pencils to erasers is 4:1 if there are 20 pencils how many erasers are there? Kerion has a beaded necklace business she can make 12 necklaces in 2 hours how long will it take her to make 9 necklaces

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  1. 30 September, 17:41
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    we express the ratio of pencil to eraser and multiply it by the number of the number of pencils and erasers. 4/5 * x=20, so x=25, then it implies that there are 5 erasers.
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