Answer:
8 months and $320
Step-by-step explanation:
To find when 30m + 80 = 40m, isolate m.
30m + 80 = 40m
Subtract 40m from both sides.
-10m + 80 = 0
Subtract 80 from both sides.
-10m = -80
Divide both sides by -10
m = 8
To find the cost, substitute 8 as m in one of the equations.
40(8) = 320
Answer:
4.3
Step-by-step explanation:
what you wanna do is add the 1.5 and the -2.8 together, then devide it by 0.4 four, and thats what X equals.
Answer:
Answer A
Step-by-step explanation:
slope= (c+d-(c-d))/(c-d-(c+d))=2d/(-2d)=-1
