HELP!?Please algrebra!?

Question

Can you help me solve this problem? Can you work it out ? And tell me how you got the answer please?here's the problem:

The perimeter of a rectangle is 42 cm. the length is 3 cm greater then the width. Find the width and length.

Thanx!

Answer 1

perimeter is 2 l + 2 w
l = w+3
So 2(w+3) +2w = 42
4w = 36
w = 9 cm and so, l = 12cm

Answer 2

Let

w=width
2L + 2w = P
2 (w+3) + 2w = 42
2w+6+2w = 42
4w+6=42
-6 -6
4w = 36
w= 9

Length = 4 + width
L = 4+9 = 13

Length: 13
Width : 9

Answer 3

beneficial this all prevalent. i'm a newbie at Judo and Jujutsu, so, I won't pretend to be an authority, yet, it sounds prevalent to me. in case you have been doing Judo for a on the same time as (like 2 years or greater) there is particularly a concern. yet, novices, beneficial, it is going to likely be difficult. Judo throws are particularly person-friendly to benefit. yet, perfecting them (the timing, potential, skill, kuzushi, etc.) takes an entire life to understand. So, only for the reason which you realize are doing a throw generally there are quite a few smaller areas that make up a great throw. you're probable lacking all of those smaller products and only have the bigger piece (something that resembles the throw you are attempting). this is going be difficult to throw a heavier guy or woman no remember in case you're a newbie or black belt. If somebody is your length or lighter, beneficial, they're person-friendly to throw. it is only that straightforward sense you manage something heavy this is harder to pass. A vehicle would be harder to pass than a bicycle. So, "Judo Magic," won't produce the mystical throws who could additionally throw all of us without difficulty. it is going to constantly be harder worker for an even bigger guy. i think of you only want greater time. i'm beneficial there are a number of Judoka who can throw larger opponets. it is all interior the main factors. I mean i'm top here, attempting to throw human beings myself on a weekly foundation. I easily have the assumption of roughly 0.5 a dozen throws in my arsenal. yet, i've got not got my timing, kuzushi, strenght, skill, technical mastery, or it down. With lighter human beings i will only muscle my way via it and plant them on the floor. yet, that's the different area of your question, in the event that they're experienced and face as much as, they're harder too. yet, it is the same concern because of fact the bigger guy, a lighweight experienced resister only takes all those smaller areas of mastery too. It takes time. I see all of the flair of the numerous Judo throws, takedowns, and sweeps. there is greater effective than one thank you to take all of us down too. Judo has many weapons to p.c. from as you bypass up the ranks too.

Answer 4

lngth - 12 cm
wdth - 9 cm
i think thats it
good luck!!!!

Answer 5

L = 15.75
W = 5.25