Rose bought 300 packs of peanuts. she bought boxes of 12 packs and boxes of 6 packs to get the 300 packs. how many boxes of 12 packs did she buy if she bought 35 boxes in all?

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Fun Dip

Mathematics

14 December, 23:34

Rose bought 300 packs of peanuts. she bought boxes of 12 packs and boxes of 6 packs to get the 300 packs. how many boxes of 12 packs did she buy if she bought 35 boxes in all?

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Kaylah Oneal · Answer 1

X + y = 35

x = 35-y

12x + 6y = 300

12 (35-y) + 6y = 300

420 - 12y + 6y = 300

420 - 6y = 300

-6y = - 120

y = - 120 / - 6

y = 20

x = 35-20 = 15

she bough 15 of the 12 packs