<h3><u>Answer: 5</u></h3><h2>Your explanation</h2>
You want to take the 20% and think of it as a number. Then you want to go by 20's till you get your number. Or do 20x5 to get 100.
<em>-Edge</em>
I'm not at my desk and can't check it out right now.
But I think you should try 10 and -42 .
Hi there!

Since U and V are midpoints of the legs, then UV is the average of both WX and ZY.
Therefore:
(ZY + WX)/2 = UV
Substitute in the given expressions:
[(6x + 5) + (x + 7)]/2 = 8x - 3
Simplify by combining like terms:
(7x + 12)/2 = 8x - 3
Multiply both sides by 2:
7x + 12 = 16x - 6
Subtract 7x from both sides and add 6 to both sides:
18 = 9x
Divide both sides by 9:
18/9 = x
x = 2.
Plug in this value of x into the equation for UV:
8(2) - 3 = 16 - 3 = 13.
Solution set = {x | x > -4}
Multiply the denominators together and the numerators together and you have your answer