find the length of the median and the missing base. Be sure to show all your work. NO LINKS!!!

Answer:
The bottom is 11
The median is 12
Step-by-step explanation:
The median is the average of the top and bottom
(13+ 2x-3) /2 = 4x-16
Combine like terms
(10+2x)/2 = 4x-16
Divide by 2
5+x = 4x-16
Subtract x from each side
5+x-x = 4x-16-x
5 = 3x-16
Add 16 to each side
5+16 = 3x-16+16
21 = 3x
Divide by 3
21/3 = 3x/3
7 =x
The bottom is 2x-3 = 2*7-3 = 14-3 = 11
The median is 4x-16 = 4*7-16 = 28 -16 = 12
Answer:
YZ = 12, ML = 11
Step-by-step explanation:
The median is half the sum of the parallel bases, that is
YZ = [tex]\frac{KN+LM}{2}[/tex]
4x - 16 = [tex]\frac{13+2x-3}{2}[/tex] ( multiply both sides by 2 to clear the fraction )
8x - 32 = 10 + 2x ( subtract 2x from both sides )
6x - 32 = 10 ( add 32 to both sides )
6x = 42 ( divide both sides by 6 )
x = 7
Then
YZ = 4x - 16 = 4(7) - 16 = 28 - 16 = 12
ML = 2x - 3 = 2(7) - 3 = 14 - 3 = 11