1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DIA [1.3K]
3 years ago
7

The length of a rectangle is the width minus 3 units. The area of the rectangle is 40 units. What is the width, in units, of the

rectangle?
Mathematics
1 answer:
Eva8 [605]3 years ago
6 0

The width of rectangle is 8 units.

Step-by-step explanation:

Given,

Area of rectangle = 40 units

Width = w

Length = w-3

Area = Length * Width

40=(w-3)*w\\40=w^2-3w\\w^2-3w=40\\w^2-3w-40=0

Factorizing the equation

w^2-8w+5w-40=0\\w(w-8)+5(w-8)=0\\(w-8)(w+5)=0

Either,

w-8=0         => w=8

Or,

w+5=0        =>w= -5

As width cannot be negative, therefore

Width of rectangle = 8 units

The width of rectangle is 8 units.

Keywords: area, rectangle

Learn more about rectangles at:

  • brainly.com/question/10538663
  • brainly.com/question/10557275

#LearnwithBrainly

You might be interested in
The science club sponser is ordering caps and shirts for the boys and girls in the science club. There are 45 science club membe
mafiozo [28]

Answer:

9 packs of shirts and 15 packs of caps

8 0
3 years ago
Let X denote the lifetime of a machine component with an exponential distribution. The mean time for the component failure is 25
hammer [34]

Answer:

15.8 % ???

at z = 1 p=.8413

I guess the question is asking 1-.8413 = 15.8 %

Step-by-step explanation:

7 0
3 years ago
a and b have the opposite directions. a has a magnitude of 7 , and b has a magnitude of 6 . What bust be true about a and b?
Hatshy [7]

Answer:

They are opposites and parallel.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Point m is the midpoint of AB. if the coordinates of m (2,8) in the coordinates of A (10, 12) are the coordinates of B
vivado [14]
Point m is the midpoint of AB. if the coordinates of m (2,8) in the coordinates of A (10, 12) are the coordinates of B this is your answer 4/8
8 0
3 years ago
Read 2 more answers
Given an equilateral triangle that has an area of 1959 cm2. What is the length of its sides?
Nina [5.8K]
Equilateral
equi means equal
lateral means sides

all sides are equal
triangle has 3 sides

perimiter=side1+side2+side3
side1=side2=side3


area=1/2 times base times height
base=side
draw a line down the middle of te tiangle so you get 2 right triangles side by side
1/2base is one leg
base is hypotonuse
height is unknown
equilateral means that it is a 30-60-90 triangle with  hypotonuse equal to 2x, height=x√3, bottom is x
1/2 times base times height=1959
1/2 times x times x√3=1959
multiply both sides by 2
(x^2)√3=3918
divide both sides by √3
x^2=3918/√3
square root both sides
x=47.5611
side=hypotonuse=2x
2x=2*47.5611
side=95.12222


legnth of each side is 2\sqrt{ \frac{3918}{ \sqrt{3} } }cm or about 95.12222 cm
7 0
3 years ago
Other questions:
  • A traffic engineer is counting the number of vehicles by type that turn into a residential area. The table below shows the resul
    5·1 answer
  • A pet store sells mice reptiles and birds
    9·2 answers
  • Which expression represents the fourth term in the binomial expansion of (e + 2f)10?
    5·2 answers
  • PLEASE ANSWER ASAP!!! I REALLY NEED HELP!!1
    6·2 answers
  • Considere os logaritmos log3=0,477 , log4=0,602 e / log5=0.699 logaritmos determine o valor de log5 12.
    8·1 answer
  • Rewrite the following equation in exponential form.<br> log49 (7) =1/2
    10·1 answer
  • What's the perimeter of a rectangle with length 12 m and width 5 m? 
    5·2 answers
  • Factor by gcf 6x2+3x+21 The 2 is supposed to be small.
    8·1 answer
  • Name an angle <br><br> D) 130°
    5·1 answer
  • (x+7)(x-12) multiply
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!