annthompson2 annthompson2

19-09-2017
Mathematics

contestada

x2+xy=20, y2+xy=30, Solve for xy.

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stallworth16 stallworth16

23-09-2017

If you substitute 2 for x, and 3 for y, than that gives you half the value of the real answer. So 2×3 =6, what is 6 half of? 12

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