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
Julli [10]
4 years ago
10

The width of a rectangle is 3 units less than the length. The area of the rectangle is 54 units. What is the length,in units of

the rectangle?
Mathematics
2 answers:
My name is Ann [436]4 years ago
5 0

Answer:

The length is 9 units

Step-by-step explanation:

Let x = length

width  = x-3

Area = 54 = l*w

54 = x * (x-3)

Distribute

54 = x^2 -3x

Subtract 54 from each side

54-54 = x^2 -3x-54

0 =  x^2 -3x-54

Factor

What 2 number multiply to -54 and add to -3

-9 * 6 =54

-9+6 =-3

(x-9) (x+6) =0

Using the zero product property

x=9   x=-6

Since we cannot have negative length

x=9 units

The length is 9 units

max2010maxim [7]4 years ago
5 0

Answer:

9 units

Step-by-step explanation:

length: L

Width: L - 3

Area = length × width

(L - 3) × L = 54

L² - 3L - 54 = 0

L² - 9L + 6L - 54 = 0

L(L - 9) + 6(L - 9) = 0

(L - 9)(L + 6) = 0

L = 9, -6

L = 9

You might be interested in
Screenshot of question below
MaRussiya [10]
Area: 20 x 30 so 600
perimeter: 20 + 20 + 30 + 30 = 100
8 0
3 years ago
1. On the coordinate plane, the vertical axis is called the x-axis and the horizontal axis is called the y-axis.
victus00 [196]
1. False They have them backwards
2. false it is an x intercept
3. verticle
5 0
4 years ago
Read 2 more answers
(10 points!!!) AND I’LL MAKE YOU BRAINLEST
melomori [17]
Well I’m not sure if I know how explain this mathematically but what I think happens is Josè is putting 150 dollars in and earning 3% interest quarterly instead of by the year, meaning his money is increasing more often then Janell, who only gets interest every year. I’m sorry if this isn’t what you were looking for
6 0
3 years ago
I really extremely need help! I will give you 5 stars and branilest
Ivanshal [37]

Answer:

37.5%

Step-by-step explanation:

12\32 = 6\16=3\8 =0.375

=37.5%

7 0
3 years ago
165% as a mixed numbers to simplest form
maksim [4K]
165% of what? If you mean 165% of 1, that's 1.65, which is 1 and 13/20
5 0
3 years ago
Other questions:
  • Sketch the number using base ten blocks 163
    11·1 answer
  • I need help with 19. 20.21<br> My answers were<br> 19.4/96<br> 20.4/42<br> 21.2/72<br> Am I right
    13·1 answer
  • If Sin a= 12/13 in quad. 2 , cos b=-4/5 quad 3, how do I find sin (a+b) ?
    11·1 answer
  • Drag the tiles to the boxes to form correct pairs.
    14·1 answer
  • Solve 112(14−6)−(−4)=−59
    14·1 answer
  • Write the triangle congruence statement and the congruence theorem that proves the triangles congruent. If fhe triangles are bot
    8·1 answer
  • PLEASE HELP ME ASAP?!?!
    15·1 answer
  • How long it would it take to spread a rumor in a town of 90,000 people if each person who heard the rumor told it to 3 new peopl
    11·1 answer
  • (Please someone help me!) (No links!)
    6·1 answer
  • Need help with this one
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!