+0  
 
0
150
1
avatar+2308 

The polygons in each pair are similar

 Mar 19, 2018
 #1
avatar+96368 
+2

13...Correct  !!!

 

14.   

 

(x  + 2 ) / 15  =  8 /10      

(x + 2) / 15  =  4/5    cross-multiply

5(x + 2)  = 15 * 4

5x + 10  =  60

5x  =  50

x  =  10

 

15.  This one is a little tougher  !!

 

9 /15   = [2x - 6] / 20       simplify 

3/5  =  2[x - 3] / 20

3/5 = [x - 3]  / 10     cross-multiply

30  = 5[ x - 3]

6  = x - 3

9  = x 

 

 

cool cool cool

 Mar 19, 2018

7 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.