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Riley and Magdalena bought beads to make a necklace. The beads that Riley bought cost ¢48 for 12. Magdalena bought 20 beads for $1.00. How much less does 15 of rileys beads cost than 15 of Magdalenas beads?
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Sep 9, 2017
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Riley and Magdalena bought beads to make a necklace. The beads that Riley bought cost ¢48 for 12. Magdalena bought 20 beads for $1.00. How much less does 15 of rileys beads cost than 15 of Magdalenas beads?
Mathematics
middle-school
Dangerousdave
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Riley : 0.48/12 = 0.04 per bead
Magdalena : 1.00/20 = 0.05 per bead
15 beads...
Riley : 15 x 0.04 = 0.60
Magdalena : 15 x 0.05 = 0.75
15 of Riley's beads cost (0.75 - 0.60) = 0.15 cents less then 15 of Magdalena's beads
Pradeek
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Sep 15, 2017
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