There is no difference because 4•2 and 2•4 is the same you are going to get the same answer either way
100*2.2=220
80*2=176
220+176=396
So the two trains will take 2.2 hours so that they are 396 miles apart.
Step-by-step explanation:
We observe the line graph.
For every 1 block across, the line goes up by 2 blocks. Therefore Slope = Rise/Run = (2)/(1) = 2.
Also, the y-intercept when x = 0 is 2.
Slope-intercept form: y = mx + c
Hence we have y = 2x + 2. (C)
Answer:
21.) 47/100
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Given the equation 
, you need find the value of the variable x.
Then, you have to solve for x:
Add 
to both sides of the equation.
Divide by -8 to both sides of the equation.
Once you do this proccedure, you will get the value of the variable x.
Then:
