The rectangles shown are similar.

What is the value of x?

A.
6

B.
5

C.
9

D.
4

https://static.k12.com/calms_media/media/1299500_1300000/1299528/1/dbae0fd6520703d4b5543607dc5ff4f619e2e83f/141104.jpg

Please help! But I think 5. I know for sure that the answer would be an odd number though.

Question

The rectangles shown are similar.
 
What is the value of x?
  

 
 A.
6
 
 B.
5
 
 C.
9
 
 D.
4

https://static.k12.com/calms_media/media/1299500_1300000/1299528/1/dbae0fd6520703d4b5543607dc5ff4f619e2e83f/141104.jpg

Please help! But I think 5. I know for sure that the answer would be an odd number though.

ineedhelplz · Answer

Yes it is 5 :)

ineedhelplz · Answer

or B

misssmartiez · Answer

$$\frac{ 9 }{ 15}  x   \frac{ 3 }{ x }$$

misssmartiez · Answer

Use cross multiplication. 


15 x 3 = 45.

misssmartiez · Answer

blank x 9 = 45. 

blank is 5.

So yes, correct, it is FIVE.