Similar triangles so AC:BC=AE:DE
15+6=21 = AE
15:12.5=21:?
to get from 15 to 12.5 you divide by 15 and times by 12.5 so do this the to the other side
21/15=1.4
1.4 x 12.5=17.5
So DE=17.5
Answer:
First one is x(7-4)
Second one is x(3)
Third one is 3x
Step-by-step explanation: Plz mark brainliest
LO = MN because LMNO is the isosceles trapezod
so <LON = <ONM = 100
Answer
<LON = 100 degrees
Answer:
at least means it need to be more or the lowest it can be is 18
X = 6
11-3x=-7
Subtract 11 from both sides.
-3x = -18
Divide -3 on both sides.
X = 6
