Answer:
For mean
To show the mean of height measures for 40 students, you need to write-out exactly 40 heights into a calculator and add them up.
Then divide that total number by 40.
Step-by-step explanation:
Eg for 4 students
5 , 5.1, 5.2, 5.7 = 21ft
21/4 = 5.25ft.
Apply the same method but use 40 measures in addition for calulator or long addition. Then divide by 40.
Since 4x/5 is the reciprocal of 1/20, that means that 4x/5 = 20/1, or 20. Using this info, we can form the equation 
. From there we can solve for x.
Firstly, multiply both sides by 5: 
Next, divide both sides by 4 and your answer will be 
Answer:
Line segment because it is part of a line that has two endpoints which are the 0 inch mark and the 12 inches mark.
The scale factor is what you will use to make a whole shape bigger. For example if I have a square that all sides are 3 cm and the scale factor is 5 then the new square would have all sides 15 cm. So the length multiplied by the scale factor gives you the new length so then you take the new measurements and multiply them to get your new area. Hope this helps!!!!
The answer is
LA to Page: 611 mi
Page to Denver: 406 mi
Total distance from LA to Denver is T.
The distance LA to Page is x
The distance Page to Denver is y.
T = x + y
T = 1017
______
x + y = 1017
<span>The distance from L.A. to Page (x) is 205 miles greater than the distance from Page to Denver (y):
x = y + 205
The system of two equations:
</span>x + y = 1017
x = y + 205
Substitute x from the second equation into the first one:
y + 205 + y = 1017
2y + 205 = 1017
2y = 1017 - 205
2y = 812
y = 812 / 2
y = 406 mi (Page to Denver)
x = y + 205 = 406 + 205 = 611 mi (LA to Page)
