P=2l +2w If l=3.75 and P= 12.26. Solve for w

Question

Hi, I need help solving for w

Answer 1

P=2I+2W to solve this equation for W you do whatever you need to to isolate W so 

 

subtract 2I form both sides: P-2I=2W since 2I-2I=0 

the divide both sides by2 :(P/2)-I=W and there you have it w=(P/2)-I now you can put the numerical values for P and I in this equation  and calculate a value for W.

 

Hope this helps

 

Jim

Answer 2

Hi Alex,

 

P=2l +2w If l=3.75 and P= 12.26. Solve for w

 

Substitute values into the given formula

 

12.26=2(3.75)+2w

12.26=7.5+2w

4.76=2w

2.38=w

 

ANSWER:  w=2.38

 

hope this helps you...