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]
2 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]2 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
if 16 men can finish to contruct a bulding in 40 days how manny more men are needed to finish the contruction in 32 days​
Digiron [165]

Answer:

20 mens are needed to contruct a building in 32 days.

5 0
2 years ago
A ski patrol unit has seven members available for duty, and two of them are to be sent to rescue an injured skier. In how many w
ikadub [295]

Answer:

21

Step-by-step explanation:

7C2 = 21

6 0
2 years ago
Simplify.<br> -5x^4(-3x^2+4x-2)
dybincka [34]
Simplification/ 15x^6-20x^5+10x^4

7 0
2 years ago
Factorise completely<br> 12x4yz2−8x3y3z2
Lina20 [59]
Final result :

4x3yz2 • (3x - 2y2)
Reformatting the input :

Changes made to your input should not affect the solution:

(1): "z2" was replaced by "z^2". 4 more similar replacement(s).

Step by step solution :

Step 1 :

Equation at the end of step 1 :

(((12•(x4))•y)•(z2))-((23x3•y3)•z2)
Step 2 :

Equation at the end of step 2 :

(((22•3x4) • y) • z2) - 23x3y3z2
8 0
3 years ago
I don't really understand how to do this if you could help please help asap, thank you
neonofarm [45]

Answer:

C

Step-by-step explanation:

Just use elimination strategy

5 0
2 years ago
Other questions:
  • A 5kg book rests on a table. How much force is it exerting on the table?​
    5·1 answer
  • What is the numerical expression for 30 more than 20
    11·1 answer
  • 1)
    13·2 answers
  • If two people are trying to meet and the distance between them are 12 miles apart how long does it take them to meet each other.
    7·1 answer
  • Write and solve a problem involving money that can be solved with a multiplication equation
    5·1 answer
  • keisha weighs 100 pounds and gains 5 pounds per month. kyra weighs 130 and loses 2 pounds per month. after how many months will
    15·1 answer
  • ×+2=17-4×<br> × equals what
    9·2 answers
  • I need a BFF because I’m so bored or I need a gamergirl
    13·2 answers
  • What are the solutions of the equation<br> x2-1=15?
    9·2 answers
  • What is the x-intercept of the graph? <br>-3<br>-2<br>2<br>6<br>​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!