Answer:
B) 
Step-by-step explanation:
So basically it's divided into 3 similar triangles and using ratios we can try to find x
long side/short side = long side/short side
(20)/(x) = (x)/(15)
= 300
x = 
I really hope I didn't make that too complicated-
Hi !

must be different from 0.


Have a nice day ;)
Answer:
D
Step-by-step explanation:
The area of the triangle is found using
A =
bh ( b is the base and h the height )
here b = 10 units and h = 8 units, hence
A =
× 10 × 8 = 40 units² → D
Answer:
x=-5, y=-8. (-5, -8).
Step-by-step explanation:
-x+2y=-11
5x-8y=39
---------------
5(-x+2y)=5(-11)
5x-8y=39
---------------------
-5x+10y=-55
5x-8y=39
--------------------
2y=-16
y=-16/2
y=-8
-x+2(-8)=-11
-x-16=-11
-x=-11+16
-x=5
x=-5
Answer:
the value of the dimes
Step-by-step explanation: