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
Keith_Richards [23]
3 years ago
9

13) A rectangular garden has an area of 45 square meters. The garden will be 4 meters longer than its width Write and sowe an eq

uation to find the dimensions in meters.​
Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
6 0

Answer:

9m ×5m

Step-by-step explanation:

Area of a rectangle= length ×width

Let the width be W meters and the length be L meters.

2 equations can be written from the given information:

45= WL -----(1)

L= W +4 -----(2)

Substitute (2) into (1):

45= W(W +4)

<em>Expand:</em>

45= W² +4W

<em>-45 on both sides:</em>

W² +4W -45= 0

<em>Factorise:</em>

(W +9)(W -5)= 0

W+9=0 or W-5=0

W= -9 or W= 5

(reject)

Substitute W= 5 into (2):

L= 5 +4

L= 9

∴ The dimensions of the garden is 9m ×5m.

You might be interested in
what is the correct first step in finding the area of the base of a cylinder with a volume of 140 pi cubic meters and a height o
maxonik [38]
The volume of the cylinder by definition is given by:
 V = Ab * h
 Where,
 Ab: base area
 h: height
 Substituting values we have:
 140 = Ab * 12
 To find the area, the first step is:
 Pass the 12 dividing.
 Answer:
 
the correct first step in finding the area of the base of a cylinder is:
 
Pass the 12 dividing.
7 0
3 years ago
Read 2 more answers
What is an equation of the line that passes through the points (-2, -5) and (-1, 1)?
Dennis_Churaev [7]

Answer: y=6x+7

Step-by-step explanation:

To find the equation of the line, we want to find the slope with the formula m=\frac{y_2-y_1}{x_2-x_1}.

m=\frac{1-(-5)}{-1-(-2)} =\frac{6}{1}=6

Now that we know th eslope, we can start to fill out the equation. To find the y-intercept, we can plug in a given point and solve.

y=6x+b

1=6(-1)+b             [multiply]

1=-6+b                 [add both sides by 6]

b=7

Now, we know the equation is y=6x+7.

8 0
3 years ago
Read 2 more answers
Two plumbers charge different rates for service. The first plumber charges $100 per service call plus $25 per hour of service. T
Bond [772]

Answer: 2

Step-by-step explanation:

6 0
3 years ago
Uma secretária possui 6 camisas, 4 saias, e 3 pares de sapatos. Qual o número de maneiras distintas com que a secretária poderá
juin [17]

Answer:

72 maneiras

Step-by-step explanation:

O que acontecerá aqui é que um de cada tipo de roupa será selecionado.

Das 6 camisas, 1 será selecionada O número de maneiras pelas quais podemos fazer isso é 6C1 = 6

Das saias também, ela estará selecionando uma O número de maneiras que isso pode ser feito é 4C1 = 4

O terceiro é selecionar um par de sapatos de 3 e isso seria 3C1 = 3

assim o número de maneiras pelas quais ela pode fazer as seleções é 6 * 4 * 3 = 72 maneiras

6 0
3 years ago
Marking brainliest!<br><br> Please help
Ksju [112]

Answer:

I believe it would be -2

Step-by-step explanation:

The midpoint of (0,4) and (4,-8) is (2,-2)

7 0
3 years ago
Other questions:
  • Sam is practing long track speed skating at an ice skating rink. The distance around the rink is 250 yards. He has skated around
    8·1 answer
  • Approximate sqrt 12 to the nearest interger
    8·1 answer
  • Pacturing Polynomials! GCH
    9·1 answer
  • YALL I NEED HELP W MY HW. its asking for an example of something thats NOT A FUNCTION. i have no ideas !!! help plsss !!
    15·2 answers
  • The ratio of 96/3 please help
    12·1 answer
  • Item 2
    5·1 answer
  • The mean age at which the population of babies first stand without support is normally distributed with a mean of 13.20 months w
    15·1 answer
  • pls help me with this i’ve been stuck on it for a while but i did it on paper and it doesn’t look right
    8·1 answer
  • Find the distance between (5,5) and (8,1)
    13·2 answers
  • Solve each proportion. 9/8 = x/7
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!