kimsooyun1109oruz6m kimsooyun1109oruz6m
  • 20-06-2017
  • Mathematics
contestada

the length of a rectangle is one unit more than its width. if the area is 30 square units, find the dimensions of the rectangle

Respuesta :

irspow
irspow irspow
  • 20-06-2017
A=xy and y=x+1 so

A=x(x+1)

A=x^2+x

x^2+x-A=0  since A=30

x^2+x-30=0

x^2-5x+6x-30=0

x(x-5)+6(x-5)=0

(x+6)(x-5)=0, since x>0 to have any meaning...

x=5 units, and since y=x+1

y=6 units.
Answer Link

Otras preguntas

the sum of 42 and a number x is 51
is 16% of 42 same as 40% of 16
Which of the following are examples of foods high in protein? You should select all that apply. options1 Steak, option2 Chicken, option3 Dry beans & peas,o
In General Biology, it is important to understand basic scientific terminology. This knowledge as well as proper spelling of medical terminology in healthcare i
is a global culture emerging? Sociologist have many reasons to believe and theorize that a global culture is emerging in the world today. Do you agree or disagr
math help, please ;v will reward !! thank you ~
helpppppppppppppppppppppp
What are all possible number sets of five between 1 and 70
Why is there a historical debate surrounding the Great Wall of China?
and computers are the most commonly seen microcomputers.