Algebra1
posted by Samantha .
P=2l+2w
Solve for l.
Please show me how you got your answer so I will understand how to do these problems. Thank you.

P=2l+2w
Perimeter = 2 * length + 2 * width
This is how you find the perimeter (distance around) a rectangle.
Suppose you want to put a border around a room. If the room is 15 feet long and 12 feet wide, then you'd figure the perimeter this way:
P = 2l + 2w
P = (2 * 15) + (2 * 12)
P = 30 + 24
P = 54
So  you'd need 54 feet of the border for the room. 
thanks!

You're welcome.

How many gallons of paint is needed to paint a wall whose dimensions are 11 feet by 19 feet with a 8 foot ceiling?
Respond to this Question
Similar Questions

Pre Algebra
Please help me with some problems. Thank you! Solve the equation by square root property. 3. 2x^2 = 26 I don't understand how to solve this problem. Solve the equation using the quadratic formula. 7. 7x^2=8x 2 This is what I got … 
Algebra problems
I have some problems that I would like checked please. Find and simplify the difference quotient f(x+h)f(x)/h, h can not equal 0 for the given functions. 1. f(x)=x^2+3x+9 I got 2x+h+3 Evaluate the piecewise function at the given … 
algebra
show how to solve these problems: 1. 6x  y = 4 2x + 2y = 15 answer:x = 1/2 y = 7 2. x +y = 1 x = 1/3 2x  y = 2 y = 4/3 3. x  y = 3 x = 5/2 6x + 4y = 13 y =  1/2 I just need to know how to solve these problems. Please show me … 
math
Peform each indicated operation by using LCD and simplify the result. Can you please show me the steps on how you got the answer because I don't understand how to these problems. Thank you. y+2 over y^2+2y+4 + 1 over y2 z3 over z^2+z6 … 
introductory algebra
I had these problems on my test and for some reason got them wrong. Here are the problems: Solve: xy=9 x+y=1 The test states that the answer is (5,4) I've checked ,y work and used substitution to solve this and still get x=4, y=5. … 
math
how do you solve these problems? 1.2x/3 + 1/3  x/8= 2/3 2. 3n + 9/10 + n/5= 2 3/10 3. 3k/4  28  2k/3 = 37 thank you can you please show me step by step how you got the answer? 
Dividing Decimals
I need Help with solving these problems. If you could show me the steps I think I will be able to get it. 1) 0.87/0.2 = 4.35 2)4.4/0.3 = 14.66 3)5.0/5.5 = 0.90 I got the answer by Calculator but when I do it myself I don't see how … 
Algebra1
I have to solve for "x": bx/c=2cx/b please show your work! Thank you! 
math ergent please please...
10.a)Solve the inequality x^35x^2+2x+8<0 by i) using intervals ii) considering all cases I did this but my teacher said that when i solved this: x^35x^2+2x+8<0 (x+1)(x^26x+8) (x+1)(x4)(x2)<0 She told me to show all the … 
Chemistry URGENT
I am having a hard time understanding how to calculate pH. my textbook states that that pH =log[H^+]. I have two questions that asks: What is the H^+ concentration in an acid with of pH 4.6?