web2.0calc
 
+0  
 

 ​ What is the value of X

+2
1154
2
avatar+292 

thanks

 Dec 6, 2017

Best Answer 

 #1
avatar
+1

Since they are similar (or proportionate ) triangles:

 

30 is to 25    as  4x-4 is to 20     or:

30/25 =(4x-4) / 20

(20)(30/25) = 4x-4

24 = 4x -4

28 = 4x

x=7

 Dec 6, 2017
edited by Guest  Dec 6, 2017

2+0 Answers

 #1
avatar
+1
Best Answer

Since they are similar (or proportionate ) triangles:

 

30 is to 25    as  4x-4 is to 20     or:

30/25 =(4x-4) / 20

(20)(30/25) = 4x-4

24 = 4x -4

28 = 4x

x=7

Guest Dec 6, 2017
edited by Guest  Dec 6, 2017
 #2
avatar+292 
0

thanks a bunch ツ

Johnnyboy  Dec 7, 2017

3 Online Users

avatar
avatar

Top Users

avatar+128407 CPhill moderator
avatar+118608 Melody moderator
avatar+33614 Alan moderator
avatar+14903 asinus moderator
avatar+9519 MaxWong
avatar+3144 admin administrator
avatar+2440 GingerAle
avatar+1763 tomtom
avatar+1423 bader
avatar+1037 parmen
avatar+1030 blackpanther

Sticky Topics