Answer:
7 percent.
Step-by-step explanation:
Hope this helps!
You have to first solve for the slop using the equation y2-y1/x2-x1 and then you plug the slope (m) into y=mx+b using one of the x and y values from any of the points above and then lastly solve for b.
For these particular points it would look like this... 11-7/5-3 =2 (slope/m)
7=2(3)+b
7=6+b
7-6=b
1=b
Final equation: y=2x+1
Multiply 2.5 by 18 to get 45, which is the answer. 45 yards of ribbon for 18 balloons
The answer is approximately 8.1
AC = 18
BC = 6x
AB = 2x + 4
Write and solve:
18 + 6x + 2x + 4
18 + 8x + 4 = 180
You can solve further:
18 + 8x = 176
8x = 158
x = 19 & 3/4
Not 100% sure what the question is asking, but hopefully this helps.