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WITCHER [35]
3 years ago
13

Elijah buys 5 pens and 4 pencils for $18.50. He may also buy 3 pens and 6 pencils for $16.50. How much does one pen cost?

Mathematics
1 answer:
Feliz [49]3 years ago
8 0
Pen's cost = 2.50.
pencil's cost = 1.50
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Explanation:

A relative minimum is a valley point, or lowest point, in a given neighborhood. Points to the left and right of the valley point must be larger than the relative min (or else you'd have some other lower point to negate its relative min-ness).

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