Answer:
C. x + 9 = 11
Step-by-step explanation:
We are trying to identify which of the equations does not match with the others. In this case, solve for x in each equation:
Option A):
6 + x = 9
Subtract 6 from both sides:
6 (-6) + x = 9 (-6)
x = 9 - 6
x = 3
Option B):
15 = x + 12
Subtract 12 from both sides:
15 (-12) = x + 12 (-12)
15 - 12 = x
x = 3
Option C):
x + 9 = 11
Subtract 9 from both sides:
x + 9 (-9) = 11 (-9)
x = 11 - 9
x = 2
Option D):
7 + x = 10
Subtract 7 from both sides:
x + 7 (-7) = 10 (-7)
x = 10 - 7
x = 3
---------------------------------------------------------------------------------------------------------
As you can tell, all the equations end with x = 3 as there answers except C. x+9=11, making (C) your answer.
~
Let n = the hours elapsed when the two trains are 660 miles apart.
Let the first train travel east and the second train travel west.
The distance traveled by the first train is
x = (50 mi/h)*(n h) = 50n mi
The distance traveled by the second train is
y = (60 mi/h)*(n h) = 60n h
The distance between the two trains after n hours is
x + y = 50 n + 60n = 110n mi
Because this distance is 660 miles, therefore
110n = 660
n = 6 hours
Answer: 6 hours
I hope this helps. Sorry it took so long
Answer:
The answer to your question is below
Step-by-step explanation:
Process
1.- Get two points of each line to find the equation of each line
Continuous line A (-10, 0) B (0, 9)
Dotted line C (-2, -3) D (0, -10)
Slope continuous line m = 
Slope dotted line m = 
2.- Get the equation of each line
Continuous line y + 0 = 9/10 (x + 10)
y = 9/10x + 9
Dotted line y + 3 = -7/2(x + 2)
y + 3 = -7/2x - 7
y = -7/2x -7 - 3
y = -7/2x - 10
3.- Find the inequalities
<u> Continuous line</u> (we need the upper area of the line, we use ≥)
y ≥ 9/10x + 9
The <u>Dotted line</u> (we also need the upper area, we use >)
y > -7/2x - 10
Aida did not use 0.18 for 18%.
When you are finding the percent of something, you can also do this in the attachment below. Yes it is written on a napkin. Hope I helped.
Answer:
<h2><u><em>
1/3</em></u></h2>
Step-by-step explanation:
Determine which fraction is larger: 2/7 or 1/3
Fraction = Division
2/7 = 0,2857142857142857
1/3 = 0,3333333333333333
