rectangle has a length of 15 cm and a perimeter of 72 cm.

Which equation could be used to find the width of the rectangle?

A.

15w = 72

B.

w + 15 = 72

C.

2w + 15 = 72

D.

2w + 30 = 72

Question

rectangle has a length of 15 cm and a perimeter of 72 cm.

 

Which equation could be used to find the width of the rectangle?
  
 
 

 
 

  

  A. 
 
15w = 72
   
   

 
 

  

  B. 
 
w + 15 = 72
   
   

 
 

  

  C. 
 
2w + 15 = 72
   
   

 
 

  

  D. 
 
2w + 30 = 72

danjs · Answer

THe perimeter of a rectangle is P
P=2*Length + 2*Width

danjs · Answer

They told you the Length is 15, put that in there and simplify a little

lukaryse · Answer

D, since the formula to find perimeter is 2(width) + w(length)
And we know the length, which is 15. So we simplify it by reducing it to 
2w+30=72

danjs · Answer

P=72
length = 15

P = 2*length + 2*Width

anonymous · Answer

d?

lukaryse · Answer

Yes, it's D