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Mork and Mindy went to the garden center together to buy plants. Mork bought 6 ferns and 1 azalea for $80. Mindy bought 5 ferns and 3 azaleas for $84. What is the price of a sin…
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Mork and Mindy went to the garden center together to buy plants. Mork bought 6 ferns and 1 azalea for $80. Mindy bought 5 ferns and 3 azaleas for $84. What is the price of a sin…
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Apr 13, 2018
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Mork and Mindy went to the garden center together to buy plants. Mork bought 6 ferns and 1 azalea for $80. Mindy bought 5 ferns and 3 azaleas for $84. What is the price of a single fern?
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Convert the info into equations:
6f + a = 80
5f + 3a = 84
Then substitute one into the other, such that you eliminate one variable:
6f + a = 80 => a = 80-6f
5f+ 3(80-6f) = 84 => 5f + 240 - 18f = 84 => -13f = -156 => f=12
so the fern is $12.
Ohad Perry
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Apr 18, 2018
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