cat2521 cat2521

22-09-2018
Mathematics

contestada

A rectangle has a length of 3x + 7 and a width of 2x - 1. If the perimeter of the rectangle is 42 meters. What is the value of x, length, and width?

Respuesta :

confusedwithhw confusedwithhw

22-09-2018

p=w+l
42=(3x+7)+(2x-1)
42=5x+6
36=5x
x=36/5

plug in x

w=3(36/5)+7
w=28.6

l=2(36/5)-1
l=13.4

Answer Link

Otras preguntas

bucket is leaking. After 3 hours the bucket has leaked 4 of an ounce. How many ounces per hour is the bucket leaking?

What is the approximate area of the circle shown use 3.14 to approximate pi

Help please what’s the answer

a living thing that hunts and eats other animals

The figure shows a plastic holder for two cups. Which numerical expression gives the area of the top of the plastic?

Go to CommonLit and search for a story called: EXCERPTS FROM THREE SISTERS1. PART A: Which of the following identifies the theme of the text?A Happiness is not

Rave-up party store buys some goods with a list price of $5,900. the supplier extends a 12 1/4%trade discount rate. What is the amount of the trade discount? a.

i rarley get upset when im at work

Answer the following question in three paragraphs: What were the causes and effects of the "return to normalcy" in the United States following World War I?

is my answer correct? Or no