Answer: -5/3
Step-by-step explanation:
12(b + 2) + 3b = -1
12b + 24 + 3b = -1
15b + 24 = -1
15b = -1-24
b = -25/15 = -5/3
Answer:
<u>y=-2x+20</u> or <u>y-4=-2(x-8)</u>
Step-by-step explanation:
first we need to calculate the slope
y2-y1/x2-x1
-6+4/7-8
-2/1
The slope is -2
Nows lets find the y intercept using
y-y1=m(x-x1)
<u>y-4=-2(x-8)</u>
y-4=-2x+16
+4 +4
<u>y=-2x+20</u>
Y intercept is 20
The solution to the system is (-2,-8)
Answer:
number 3
Step-by-step explanation:
(3,000+900+70) = 3,970
3,970*10 = 39,700