Mathematics
Mehner149
23

The cost of three boxes of envelopes and four boxes of notebooks paper is $13.25 2 boxes of envelopes and six boxes of notebook paper cost $17 find the cost of each

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(1) Answers
shyemonaydavis

y = envelopes x = notebook paper -2(4x + 3y = 13.25) 3(6x + 2y = 17) -8x - 6y = - 26.5 18x + 6y = 51 10x = 24.5 x = 2.45 4(2.45) + 3y = 13.25 9.8 + 3y = 13.25 -9.8 -9.8 3y = 3.45 y = 1.15 envelopes = $1.15 notebook paper = $2.45

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