chrisgalarza653 chrisgalarza653
  • 20-06-2019
  • Mathematics
contestada

The length and width of a rectangle are consecutive even integers the area of the rectangle is 120 squares units what are the length and width of the rectangle

Respuesta :

smmwaite
smmwaite smmwaite
  • 20-06-2019

Answer:

Length =12

Width= 10

Step-by-step explanation:

The difference between two consecutive integers is 2.

Thus the difference between the length and the width of the rectangle also differ by 2.

width- x

length- x+2

AREA=L×W

120=x(x+2)

x²+2x-120=0

Factorizing:

x² - 10x + 12x - 120=0

x(x-10) + 12( x-10)=0

(x-10)(x+12)=0

either x-10=0 or x+12=0

x=10 0r -12

We consider positive roots only. thus x=10

width = 10

length = 10+2 =12

Answer Link

Otras preguntas

Congress shall have power...to make all laws which shall be necessary and proper for carrying into execution the foregoing powers.... This section of the Consti
Does the First Amendment Affect Our Lives Today
a yogurt costs 55 pence . how many yogurts can be bought for 3 pounds
PLEASE HELP ME Who smuggled textile secrets from British factories into America? Eli Whitney Samuel Slater Francis Cabot Lowell Henry Ford
Which of the following is considered a xanthine? a. Acetylcysteine b. Guaifenesin c. Theophylline d. Epinephrine HCL
Why did the North have more capital than the South? The North made more money on its farm produce. The South did not produce any goods to sell in trade. The Sou
Why was the Reapportionment Act of 1929 passed?
Jonah had 4 books Stacy had 7 books how many books did they not have
Why was the Reapportionment Act of 1929 passed?
When and where did jainism develop ?