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
UkoKoshka [18]
3 years ago
7

The owner of an office building is expanding the length and width of a parking lot by the same amount. The lot currently measure

s 120 ft by 80 ft, and the expansion will increase its area by 4,400 ft^2. How many feet should the length of the parking lot be increased?
A) 1.2
B) 20
C) 66.3
D) 220
Mathematics
2 answers:
Goryan [66]3 years ago
7 0

Answer: B) 20

Step-by-step explanation:

edg 2020

Gnoma [55]3 years ago
4 0

The best and most correct answer among the choices provided by your question is the second choice or letter B "20".

The current area is 120(80)=9600 and he want to expand it by 4400 so that the new area will be 9600+4400=14000 

14000=(120+x)(80+x) 

14000=9600+200x+x^2 

x^2+200x-4400=0 

x^2-20x+220x-4400=0 

x(x-20)+220(x-20)=0 

(x+220)(x-20)=0, since x is an increase it must be greater than zero so 

x=20ft 

(120+20)(80+20)=14000ft^2


I hope my answer has come to your help. Thank you for posting your question here in Brainly.

You might be interested in
What is the solution to the equation
Elis [28]

Answer:

x = -13

Step-by-step explanation:

Distribute:

8 - 6x + 10x - 15 = 20 - 5x

Combine like terms:

4x - 7 = 20 - 5x

Isolate Variable

-x = 13

-1(-x) = -1(13)

x = -13

8 0
3 years ago
Read 2 more answers
The length of the flower garden is 3 times as great as the width. What are the dimensions? The area is 48 sq m
Rudiy27
The correct answer is 144
8 0
3 years ago
There are 550 students at Martin Middle School. One bundred and eighty- seven students walk to school. what percent of the stude
Anvisha [2.4K]
For a question like this, all you have to do is remember that a percentage is simply a fraction expressed as a decimal. So, all we have to do is:
\frac{187}{550}, and then multiply our decimal answer by 100 to get the percentage:
\frac{187}{550} = 0.34
0.34 x 100 = 34
Therefore 34% of the students walk to school.
I hope this helped and remember to please try and understand the maths that got the answer, not just writing the answer down :))
4 0
3 years ago
Given that NML is similar to SQR, what is x?<br><br> a) x=18<br> b) x=14.2<br> c) x=40.5<br> d) x=24
Anni [7]

a) x=18

16÷24 = 2/3

2/3 × 27=18

8 0
3 years ago
10x + 10y = −10<br> 9x + 10y = −18
andreev551 [17]

Answer:

Step-by-step explanation:

10x+10y=-10

9x+10y=18

= 10x+10y=-10

-9x-10y=18

= x=8

step two is to find y:

10x+10y=-10

10(8)+10y=-10

80+10y=-10

10y=-90

y=-9

your answer:

(x,y)= (8,-9)

5 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the following equation 6(z-2)+4=10<br> A.z=2<br> B.z=3<br> C.z=-3<br> D.z=-4
    9·2 answers
  • How much of the circle is shaded? Write your answer as a fraction in simplest form.
    14·1 answer
  • $15.60 to $11.70 Increase or decrease
    8·2 answers
  • Derive the positive square root of 982081
    11·1 answer
  • Evan has 2 pieces of wood: one is 90 inches and the other is 72 inches.he wants to cut both pieces of wood into smaller pieces s
    11·1 answer
  • Whats 13 times 13 first one right gets 10 points
    9·2 answers
  • I need this whole page answered for max points thx in advance Xd
    7·1 answer
  • Determine the percent of change.<br> 15 planes to 18 planes
    6·1 answer
  • Can some pleasee help me with these or atleast one
    9·1 answer
  • Please answer question for me ASAP!!!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!