Mathematics, 21.10.2020 21:01, aeshaalhemri
A certain brand of razor blades in packages of 6, 12, and 24 blades, costing $3, $4, and $5 per package, respectively. A store sold 12 packages containing a total of 258 razor blades and took in $73. How many packages of each type were sold?
Answers: 1
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Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.
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A certain brand of razor blades in packages of 6, 12, and 24 blades, costing $3, $4, and $5 per pack...
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