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Mathematics
Randall Huffman
16 November, 02:54
2p = 7 q 6p - 3q = 24
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Natasha Mayer
16 November, 03:51
0
2p = 7q
6p - 3q = 24
From 2p = 7q
p = 7q/2 substitute this in second equation.
6p - 3q = 24
6 * (7q/2) - 3q = 24
21q - 3q = 24
18q = 24
q = 24/18 = 4/3
Recall, p = 7q/2 p = 7 * (4/3) / 2 = 14/3
Therefore, p = 14/3, q = 4/3
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Wagner
16 November, 04:06
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2p=7q
6p-3q=24
2p-q=8
q=2p-8
substitute q=2p-8 into 2p=7q
2p=7 (2p-8)
2p=14p-56
14p-2p=56
12p=56
p=4.66666666 ...
q=2p-8
q=2 (4.6666 ...) - 8
q=1.333333333 ...
Therefore, p=4.67 (3. s. f) and q=1.33 (3. s. f.)
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