4x + 6y = 8 5x – 4y = 25 a. (0.5, –1.3) c. (3.96, 3.04) b. (3.96, –1.3) d. (0.05, 3.04)
The solution set for 4x + 6y = 8, 5x – 4y = 25 is (3.96, –1.3). Multiply 4x + 6y = 8 by 5: 20x + 30y = 40; Multiply 5x ? 4y = 25 by 4: 20x - 16y = 100; (20x - 16y = 100) - (20x + 30y = 40): -46y = 60; y = 60/-46; y = -30/23; y = -1.3 Solve for x: 4x + 6y = 8; 4x + 6(-30/23) = 8; 4x - 180/23 = 8; 4x = 8 + 180/23; 4x = 364/23; x = (364/23)/4; x = 364/92; x = 91/23; x = 3.96
s
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Updated 11/20/2014 3:48:22 PM
Edited by andrewpallarca [11/20/2014 3:48:21 PM]
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Which word is most nearly opposite in meaning to abundance? a. scarcity c. necessary b. plenty d. moderation
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Updated 11/18/2014 10:30:59 AM

SCARCITY is most nearly opposite in meaning to abundance.

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