7x + 5 = 8x - 25
- 5 = -8x -5
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7x - 8x = - 5 - 25
-1x = - 30
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-1 -1
x = 30
Answer:
x-intercept: (3,0)
y-intercept: (0,-2)
Step-by-step explanation:
I hope this right
Let x represent the number of type A table and y represent the number of type B tables.
Minimize: C = 265x + 100y
Subject to: x + y ≤ 40
25x + 13y ≥ 760
x ≥ 1, y ≥ 1
From, the graph the corner points are (20, 20), (39, 1), (30, 1)
For (20, 20): C = 265(20) + 100(20) = $7,300
For (39, 1): C = 265(39) + 100 = $10,435
For (30, 1): C = 265(30) + 100 = $8,050
Therefore, for minimum cost, 20 of type A and 20 of type B should be ordered.
