Answer:
DB = 24
Step-by-step explanation:
First, note that the diagonals of a rectangle are equal and bisect each other. In other words, DB = CA and CE = EA and DE = BE.
Also, AE + CE = CA
So, using this, we can write this equation:
AE = CE
x + 4 = 3x -12
Subtract 4 from both sides.
x = 3x -16
Subtract 3x from both sides.
-2x = -16
Divide both sides by -2
x = 8
Then, substitute this into AE + CE = CA
x + 4 + 3x - 12 =
8 + 4 + 24 - 12 = 24
Then, because CA = DB,
DB = 24
I hope this helps! Feel free to ask any questions! :)
The length of the trail is 98.5 KM, all you need to do is divide the total distance by the number of times she went on it.
3+6x+3x+ 6 = 180
9x + 9 = 180
9x = 171
x = 19
Answer:
900 fruits
Step-by-step explanation:
Mona subtracted 5 where she should have divided 5. If the equasion was. x+5=30 then she would have subtracted 5.
