And if you need an example this is the website I went to: http://www.mathsisfun.com/data/standard-deviation.html
Answer:
<h2><u><em>
8</em></u></h2>
Step-by-step explanation:
12 cars in 15 hours how many cars is in 10 hours
12 : 15 = x : 10
x = 12 * 10 : 15
x = 8
-------------------
check
12 : 15 = 8 : 10
0.8 = 0.8
the answer is good
Answer:
x=8
Step-by-step explanation:
2(x+4)=4x-8
2x+8=4x-8
2x+8-8=4x-8-8
2x=4x-16
2x-4x=4x-16-4x
-2x=-16
Divide by -2 on both sides
and get... X=8