So 2x+12=5x-9
you want all of the unknowns on one side and all of the known values on the other or
subtract 2x from both sides
12=3x-9
add 9 to both sides
21=3x
divide both sides by 3
7=x
You would have to make 465=1550-7 1/2 x and find x
Subtract 1550 from both sides
-1085=-7 1/2x
Divide -7 1/2 on both sides
And the answer is 144 2/3
Sorry about ur bad luck
I can't read that language but I'll guess it says write a second degree equation then solve for n when d=10.



Answer: n² - 3n - 20 = 0
That doesn't factor so there is no integer n solution.
That means there are no polygons with 10 diagonals.

Answer:
the indicated angle should be 121°
Step-by-step explanation:
If 2 lines are parallel to each other & a transversal intersects both of them , the corresponding angles on a same side are equal.
If the indicated angle will be equal to the given angle , they will be known as corresponding angles only when v || u.
So the indicated angle is 121°
In the first 3 days, I think that Juanita will ride 12500? I'm not sure if that is right but I think it is.