THE LENGTH OF A RECTANGLE IS 2 FEET LESS THAN TWICE ITS WIDTH. IF THE PERIMETER IS 26 FEET, FIND THE LENGTH AND WIDTH (PLEASE HELP) I KNOW THE ANSWER...BUT I HAVE TO SEE HOW ITS DONE.

Question

anonymous · Answer

Perimeter = 2*l+ 2*w
l=2*w-2
Perimeter = 2*(2*w-2) + 2*w =26
4w-4+2w = 26
6w = 30
w=5, l=8

anonymous · Answer

OMG that is awesome thank you!!

anonymous · Answer

You're welcome.

anonymous · Answer

I'm sorry but how did you get the 8...I see that 30/6 =5 but where did the 8 come from?

anonymous · Answer

never mind :)

anonymous · Answer

I see it

anonymous · Answer

l=2*w-2
l=2*5-2=8

anonymous · Answer

I cannot tell you how grateful i am!! i've been stuck on that for hours. :(

anonymous · Answer

Can you tell me the formula for time...when I=PRT ...how do i isolate T?

anonymous · Answer

Anytime. I don't understand. So T is time... what's P, I and R?

anonymous · Answer

So it's to figure out Simple Interest... I is Interest...P is Principle...R is Rate such as the % of interest charged and T is time... so I=P*R*T

anonymous · Answer

INTEREST IS EQUAL TO PRINCIPLE * RATE * TIME

anonymous · Answer

My problem is I need to know... 
For how many years must $10,000 (that's principle) be invested at an 8 1/2 % annual interest rate to yield $4,250 in simple interest?

anonymous · Answer

4250=8.5*10,000*T   I think this is the equation but I'm not sure

anonymous · Answer

LOL I figured it out...heeheehehe