a). (20 x 80) + (20 x 6) + (7 x 80) + (7 x 6)
Answer:
-2/5
Step-by-step explanation:
2/5 + -4/5 becomes 2/5-4/5
2/5-4/5= -2/5
Answer:
y = (4/7)X + 22/7
Step-by-step explanation:
Moving from (-2, 2) to (-6, -5), we see that x (the "run") decreases by 4 and y (the "rise") decreases by 7 (from 2 to -5). Thus, the slope is m = rise / run =
-4/(- 7) = 4/7. The slope intercept form y = mx + b takes on the specific values 4/7 for m, 2 for y and -2 for x:
2 = 4/7(-2) + b, or 14 = -8 + 7b. Thus, 22 = 7b, and b = 22/7.
The desired equation is y = (4/7)X + 22/7.
<span>This equation have one solution.
</span><span>
5(2x – 3) = 5
2x - 3 = 5/5
2x - 3 = 1
2x = 1 + 3
2x = 4
x = 4/2
x = 2
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