SOLUTION: PLEASE HELP!!!!!!!!! THE TWO POLYGONS SHOWN ARE SIMILAR FIND THE VALUE OF X 10 x -- = -- 6 4 ??? i dont know how to figure this out. doing cross cancelling was in

Algebra ->  Surface-area -> SOLUTION: PLEASE HELP!!!!!!!!! THE TWO POLYGONS SHOWN ARE SIMILAR FIND THE VALUE OF X 10 x -- = -- 6 4 ??? i dont know how to figure this out. doing cross cancelling was in      Log On


   



Question 656229: PLEASE HELP!!!!!!!!! THE TWO POLYGONS SHOWN ARE SIMILAR FIND THE VALUE OF X
10 x
-- = --
6 4 ??? i dont know how to figure this out. doing cross cancelling was incorrect. THANKS FOR YOUR HELP!

http://i48.tinypic.com/dynof9.png <<< picture of the problem & multiple choice answers

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+x%2F4+=+10%2F6+
+x%2F4+=+5%2F3+
Multiply both sides by +12+
+3x+=+20+
+x+=+6+%2B+2%2F3+
----------------
You just had a problem with the
cross-multiply
I usually multiply both sides by the
LCD, which was 12 in this case