Answer:

Step-by-step explanation:
To navigate through this problem, start by finding how much each senator can complete in a fixed amount of time. I'll choose 10 as it's the greatest common factor of 30 and 50.
In 10 minutes, the junior senator can complete
of the labyrinth.
In 10 minutes, the senior senator can complete
of the labyrinth.
Therefore, working together, they can complete
of the labyrinth in 10 minutes. Thus, it will take them
to complete one labyrinth.
The amount of time it take them to complete 12 labyrinths is then 
<span> x^2 +(x-4)^2 =20^2</span>
<span> x^2 +(x-4)^2 =400</span>
x^2 +(x-4)^2 -400=0
factor:
2x^2-8x-384=0
Factor the 2 out of 2X^2
2(x-16) (x+12) =0
<span> Divide both sides by 2</span>
(x-16) (x+12) =0
X=16 , x=-12
<span> Number cannot be negative so x=16</span>
For an example 3/5 is like i ate 3 of the 5 apples i had
Answer:
When you move down you subtract and when you move to the right you subtract when your moving up or to the left you add. hope that helped :-)
Step-by-step explanation:
20& 10/35 - 26/35
19& 16/35 simplified to it's fullest.