Answer:
-5x
Step-by-step explanation:
im in middle school but imma try my best :)
5x+20= 25
25-20= -5x
Awnser: -5x
hope dis helped
Answer:
15.6
Step-by-step explanation:
the traingle is right so u have to apply the pythagorean theorem to find x so x^2=10^2+12^2=244
so x=15.6
The size of the third angle is 102 degrees.
This is because all three angles should always equal 180 degrees. If two of them make up 78 degrees, then you do 180-78 to fine the last angle.
If Richard mows 1/3 of his yard in 1/2 hours, then Richard can mow 2/3 of his yard in 1 hour.